diff --git a/CHANGELOG.md b/CHANGELOG.md
index c82d5b447f..c9f5770138 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,9 +18,11 @@ it in future.
 
 * New warm MS option TRY_2025 (Stellatryon v.2) added to the config and its field map
 
+* Created genie_config folder for our XML configuration files. For now, only replacing Pythia6Decayer with Pythia8Decayer
 ### Changed
 
 * Only get evtNo in ShipStack if there are tracks. Prevents seg faults from accessing empty events at the end of the run. #1051
+* makeGenieEvents: automatically set GXMLPATH to the genie_config folder. Remove option --nudet since now GXMLPATH always needs to be set.
 * Make Ship::Generator base class for all the generators. Each generator can in principal take a list of files, although each will need to implement the method to do so. #1047
 * Add file glob to run_simScript.py input files to allow for wildcards etc. Also, if nEvents is set to -1, run over everything. #1041
 * Turn warning to debug in MuonBackGenerator to prevent overly verbose output. #1036
diff --git a/macro/makeGenieEvents.py b/macro/makeGenieEvents.py
index ebcce2d955..b99fa9cda4 100644
--- a/macro/makeGenieEvents.py
+++ b/macro/makeGenieEvents.py
@@ -3,15 +3,14 @@
 # SPDX-FileCopyrightText: Copyright CERN for the benefit of the SHiP Collaboration
 """Generate GENIE neutrino interaction events from flux histograms.
 
-This “launcher” wraps `genie_utils` (gmkspl/gevgen/gntpc helpers) and adds:
+This "launcher" wraps `genie_utils` (gmkspl/gevgen/gntpc helpers) and adds:
 - Argument parsing with sensible defaults and validation
-- Optional *nudet* mode (disables charm/tau decays via GXMLPATH)
 - Automatic neutrino/antineutrino scaling based on flux hist sums
 - Structured logging and robust error reporting
 
 Typical use
 -----------
-$ python $FAIRSHIP/macro/makeGenieEvents sim \
+$ python $FAIRSHIP/macro/makeGenieEvents.py sim \
     --seed 65539 \
     --output ./work \
     --filedir /eos/experiment/ship/data/Mbias/background-prod-2018 \
@@ -21,14 +20,13 @@
     --emin 0.5 --emax 350 \
     --xsec-file gxspl-FNALsmall.xml \
     --flux-file pythia8_Geant4_1.0_withCharm_nu.root \
-    --event-generator-list CC \
-    --nudet
+    --event-generator-list CC
 
 Notes
 -----
 - This tool *does not* modify your parent shell environment.
-- `--nudet` sets `GXMLPATH` for the child process only (you can override path
-  with `--gxmlpath`).
+- GXMLPATH is automatically set to $FAIRSHIP_ROOT/shipgen/genie_config by default.
+- Use `--gxmlpath` to override the default GXMLPATH if needed.
 
 """
 
@@ -36,6 +34,7 @@
 
 import argparse
 import logging
+import os
 from collections.abc import Mapping, Sequence
 from pathlib import Path
 
@@ -101,11 +100,15 @@ def _ensure_dir(path: Path) -> None:
     path.mkdir(parents=True, exist_ok=True)
 
 
-def _build_env(nudet: bool, gxmlpath: Path | None) -> Mapping[str, str | None] | None:
-    """Build per-call env overrides (sets GXMLPATH only in nudet mode)."""
-    if not nudet:
-        return None
-    val = str(gxmlpath) if gxmlpath else "/eos/experiment/ship/user/aiuliano/GENIE_FNAL_nu_splines"
+def _build_env(gxmlpath: Path | None) -> Mapping[str, str | None] | None:
+    """Build per-call env overrides (sets GXMLPATH)."""
+    fairship_root_path = os.getenv("FAIRSHIP_ROOT") or os.getenv("FAIRSHIP")
+    if not fairship_root_path:
+        raise OSError(
+            "FAIRSHIP_ROOT (or FAIRSHIP) environment variable is not set. "
+            "Please run inside the FairShip alienv environment."
+        )
+    val = str(gxmlpath) if gxmlpath else fairship_root_path + "/shipgen/genie_config"
     return {"GXMLPATH": val}
 
 
@@ -165,12 +168,9 @@ def make_events(
         out_dir = work_dir / f"genie-{pdg_name}_{N}_events"
         _ensure_dir(out_dir)
 
-        nudet_suffix = "_nudet" if env_vars and env_vars.get("GXMLPATH") else ""
-        filename = (
-            f"run_{run}_{pdg_name}_{N}_events_{targetcode}_{emin}_{emax}_GeV_{process or 'ALL'}{nudet_suffix}.ghep.root"
-        )
+        filename = f"run_{run}_{pdg_name}_{N}_events_{targetcode}_{emin}_{emax}_GeV_{process or 'ALL'}.ghep.root"
         ghep_path = out_dir / filename
-        gst_path = out_dir / f"genie-{filename}"
+        gst_path = out_dir / f"genie-{filename.replace('ghep.root', 'gst.root')}"
 
         logging.info(f"Generating {N} events for PDG {pdg_name} (run={run}) -> {ghep_path}")
 
@@ -259,8 +259,7 @@ def _build_parser() -> argparse.ArgumentParser:
         default=None,
         help="GENIE generator list (e.g. CC, CCDIS, CCQE, CharmCCDIS, RES, CCRES, ...)",
     )
-    ap.add_argument("--nudet", action="store_true", help="Disable charm & tau decays via GXMLPATH")
-    ap.add_argument("--gxmlpath", type=Path, default=None, help="Override GXMLPATH in --nudet mode")
+    ap.add_argument("--gxmlpath", type=Path, default=None, help="Override GXMLPATH")
     ap.add_argument(
         "-p",
         "--particles",
@@ -315,7 +314,7 @@ def main(argv: Sequence[str] | None = None) -> int:
         return 0
 
     # sim
-    env_vars = _build_env(nudet=bool(args.nudet), gxmlpath=args.gxmlpath)
+    env_vars = _build_env(gxmlpath=args.gxmlpath)
     targetcode = _target_code(args.target)
 
     splines = (args.splinedir / args.xsec_file).resolve()
@@ -328,12 +327,7 @@ def main(argv: Sequence[str] | None = None) -> int:
     particles = _pdg_list(args.particles)
     nu_over_nubar = extract_nu_over_nubar(flux, particles)
 
-    logging.info(
-        f"Seed: {args.seed} | "
-        f"Target: {args.target} ({targetcode}) | "
-        f"Process: {args.evtype or 'ALL'} | "
-        f"nudet={bool(args.nudet)}"
-    )
+    logging.info(f"Seed: {args.seed} | Target: {args.target} ({targetcode}) | Process: {args.evtype or 'ALL'}")
     make_events(
         run=int(args.run),
         nevents=int(args.nevents),
diff --git a/pyproject.toml b/pyproject.toml
index 4e7410c625..b9f535b825 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,4 +12,4 @@ ignore = [
 
 
 [tool.codespell]
-ignore-words-list = 'Millepede,Gaus,gaus,dYIn,te'
+ignore-words-list = 'Millepede,Gaus,gaus,dYIn,te,KNO,kno'
diff --git a/shipgen/genie_config/AGKY2019.xml b/shipgen/genie_config/AGKY2019.xml
new file mode 100644
index 0000000000..90a761ba8f
--- /dev/null
+++ b/shipgen/genie_config/AGKY2019.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!--
+Configuration for the AGKY2019 HadronizationModelI
+
+Algorithm Configurable Parameters:
+......................................................................................................
+Name                        Type    Opt    Comment                                     Default
+......................................................................................................
+KNO-Hadronizer              alg     No
+PYTHIA-Hadronizer           alg     No
+TransMethod                 int     Yes    0: KNO only                                 2
+                                           1: PYTHIA only
+                                           2: linear transition from KNO->PYTHIA in
+                                           [Wmin,Wmax] invariant mass window
+KNO2PYTHIA-Wmin             double  No     relevant only for method=2                  CommonParam[KNO2Pythia]
+KNO2PYTHIA-Wmax             double  No     relevant only for method=2                  CommonParam[KNO2Pythia]
+-->
+
+<alg_conf>
+
+  <param_set name="Default">
+
+    <param type="string" name="CommonParam"> KNO2Pythia </param>
+
+    <param type="alg" name="KNO-Hadronizer">      genie::AGKYLowW2019/Default     </param>
+    <param type="alg" name="PYTHIA-Hadronizer">   genie::Pythia8Hadro2019/Default </param>
+
+  </param_set>
+
+</alg_conf>
diff --git a/shipgen/genie_config/AGKYLowW2019.xml b/shipgen/genie_config/AGKYLowW2019.xml
new file mode 100644
index 0000000000..e1c9536d3c
--- /dev/null
+++ b/shipgen/genie_config/AGKYLowW2019.xml
@@ -0,0 +1,187 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!--
+Configuration for the AGKYLowW2019 HadronizationModelI
+
+Algorithm Configurable Parameters:
+.......................................................................................................................
+Name                              Type    Opt   Comment                                       Default
+.......................................................................................................................
+KNO-Alpha-vp                      double  No    a for vp in <mult> = a + blnW^2               KNO-Alpha-vp
+KNO-Alpha-vn                      double  Yes   a for vn                                      KNO-Alpha-vn
+KNO-Alpha-vbp                     double  No    a for vbp                                     KNO-Alpha-vbp
+KNO-Alpha-vbn                     double  No    a for vbn                                     KNO-Alpha-vbn
+KNO-Beta-vp                       double  No    b for vp                                      KNO-Alpha-vp
+KNO-Beta-vn                       double  No    b for vn                                      KNO-Alpha-vn
+KNO-Beta-vbp                      double  No    b for vbp                                     KNO-Alpha-vbp
+KNO-Beta-vbn                      double  No    b for vbn                                     KNO-Alpha-vbn
+KNO-EM-Alpha-vp                   double  No    a for vp in <mult> = a + blnW^2               KNO-EM-Alpha-vp
+KNO-EM-Alpha-vn                   double  Yes   a for vn                                      KNO-EM-Alpha-vn
+KNO-EM-Alpha-vbp                  double  No    a for vbp                                     KNO-EM-Alpha-vbp
+KNO-EM-Alpha-vbn                  double  No    a for vbn                                     KNO-EM-Alpha-vbn
+KNO-EM-Beta-vp                    double  No    b for vp                                      KNO-EM-Alpha-vp
+KNO-EM-Beta-vn                    double  No    b for vn                                      KNO-EM-Alpha-vn
+KNO-EM-Beta-vbp                   double  No    b for vbp                                     KNO-EM-Alpha-vbp
+KNO-EM-Beta-vbn                   double  No    b for vbn                                     KNO-EM-Alpha-vbn
+KNO-Alpha-Hyperon                 double  No    a in Pstrange = a+blnW^2                      KNO-Alpha-Hyperon
+KNO-Beta-Hyperon                  double  No    b in Pstrange = a+blnW^2                      KNO-Beta-Hyperon
+KNO-LevyC-vp                      double  No    Levy function param c for vp                  KNO-LevyC-vp
+KNO-LevyC-vn                      double  No    Levy function param c for vn                  KNO-LevyC-vn
+KNO-LevyC-vbp                     double  No    Levy function param c for vbp                 KNO-LevyC-vbp
+KNO-LevyC-vbn                     double  No    Levy function param c for vbn                 KNO-LevyC-vbn
+KNO-EM-LevyC-vp                   double  No    Levy function param c for vp                  KNO-EM-LevyC-vp
+KNO-EM-LevyC-vn                   double  No    Levy function param c for vn                  KNO-EM-LevyC-vn
+KNO-EM-LevyC-vbp                  double  No    Levy function param c for vbp                 KNO-EM-LevyC-vbp
+KNO-EM-LevyC-vbn                  double  No    Levy function param c for vbn                 KNO-EM-LevyC-vbn
+ForceNeugenMultLimit          bool    Yes   force neugen upper multiplicity limit (10)    false
+Wcut                          double  No    W cut in DIS/RES join scheme                      CommonParam[NonResBackground]
+DIS-HMultWgt-vp-CC-m2             double  No    scaling factor, vp  CC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vp-CC-m3             double  No    scaling factor, vp  CC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vp-NC-m2             double  No    scaling factor, vp  NC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vp-NC-m3             double  No    scaling factor, vp  NC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vp-EM-m2             double  No    scaling factor, vp  EM, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vp-EM-m3             double  No    scaling factor, vp  EM, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vn-CC-m2             double  No    scaling factor, vn  CC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vn-CC-m3             double  No    scaling factor, vn  CC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vn-NC-m2             double  No    scaling factor, vn  NC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vn-NC-m3             double  No    scaling factor, vn  NC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vn-EM-m2             double  No    scaling factor, vn  EM, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vn-EM-m3             double  No    scaling factor, vn  EM, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vbp-CC-m2            double  No    scaling factor, vbp CC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vbp-CC-m3            double  No    scaling factor, vbp CC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vbp-NC-m2            double  No    scaling factor, vbp NC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vbp-NC-m3            double  No    scaling factor, vbp NC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vbp-EM-m2            double  No    scaling factor, vbp EM, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vbp-EM-m3            double  No    scaling factor, vbp EM, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vbn-CC-m2            double  No    scaling factor, vbn CC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vbn-CC-m3            double  No    scaling factor, vbn CC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vbn-NC-m2            double  No    scaling factor, vbn NC, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vbn-NC-m3            double  No    scaling factor, vbn NC, multiplicity=3 CommonParam[NonResBackground]
+DIS-HMultWgt-vbn-EM-m2            double  No    scaling factor, vbn EM, multiplicity=2 CommonParam[NonResBackground]
+DIS-HMultWgt-vbn-EM-m3            double  No    scaling factor, vbn EM, multiplicity=3 CommonParam[NonResBackground]
+KNO-ProbPi0Pi0                    double  No    probability for pi0 pair                      KNO-ProbPi0Pi0
+KNO-ProbPiplusPiminus             double  No    probability for pi+pi- pair                   KNO-ProbPiplusPiminus
+KNO-ProbKplusKminus               double  No    probability for K+K- pair                     KNO-ProbKplusKminus
+KNO-ProbK0K0bar                   double  No    probability for K0 K0bar pair                 KNO-ProbK0K0bar
+KNO-ProbPi0Eta                    double  No    probability for Pi0 Eta pair                  KNO-ProbPi0Eta
+KNO-ProbEtaEta                    double  No    Probability for Eta Eta pair                  KNO-ProbEtaEta
+ForceDecays                   bool    Yes   force decays of unstable particles            false
+Decayer                       alg     Dep   decayer to be used if decayes are forced
+ForceMinMultiplicity          bool    Yes   force a minimum multiplicity of 2             true
+GenerateWeighted              bool    Yes   generate weighted events                      false
+KNO-UseBaryonPdfs-xFpT2           bool    Yes   use a baryon pT^2, xF parameterization        KNO-UseBaryonPdfs-xFpT2
+KNO-UseIsotropic2BodyDec          bool    Yes   use isotropic, non-reweighted 2-body decays   KNO-UseIsotropic2BodyDec
+                                            for compatibility with neuugen/daikon
+KNO-PhaseSpDec-Reweight           bool    Yes   reweight decays to to reproduce exp pT2       KNO-PhaseSpDec-Reweight
+KNO-PhaseSpDec-ReweightParm       double  Yes   parameter controlling the reweight function   KNO-PhaseSpDec-ReweightParm
+-->
+
+<alg_conf>
+  <param_set name="Default">
+
+    <param type="string" name="CommonParam">  NonResBackground </param>
+
+    <!--
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+         Parameters controlling the average charged hadron multiplicities in the AGKY/KNO model
+         (paramerers a,b entering in the empirical expression: <n> = a + b * lnW^2 )
+         See Nucl.Instrum.Meth.A614:87-104,2010 and Eur.Phys.J.C63:1-10,2009.
+    -->
+    <param type="double" name="KNO-Alpha-vp">  0.40 </param>
+    <param type="double" name="KNO-Alpha-vn"> -0.20 </param>
+    <param type="double" name="KNO-Alpha-vbp"> 0.02 </param>
+    <param type="double" name="KNO-Alpha-vbn"> 0.80 </param>
+    <param type="double" name="KNO-Beta-vp">   1.42 </param>
+    <param type="double" name="KNO-Beta-vn">   1.42 </param>
+    <param type="double" name="KNO-Beta-vbp">  1.28 </param>
+    <param type="double" name="KNO-Beta-vbn">  0.95 </param>
+
+    <param type="double" name="KNO-EM-Alpha-vp">  0.40 </param>
+    <param type="double" name="KNO-EM-Alpha-vn"> -0.20 </param>
+    <param type="double" name="KNO-EM-Alpha-vbp"> 0.02 </param>
+    <param type="double" name="KNO-EM-Alpha-vbn"> 0.80 </param>
+    <param type="double" name="KNO-EM-Beta-vp">   1.42 </param>
+    <param type="double" name="KNO-EM-Beta-vn">   1.42 </param>
+    <param type="double" name="KNO-EM-Beta-vbp">  1.28 </param>
+    <param type="double" name="KNO-EM-Beta-vbn">  0.95 </param>
+
+    <!--
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+         Parameters controlling the probability of producing a strange baryon via associated production.
+         (paramerers a,b entering in the empirical expression: P_{hyperon} = a + b * lnW^2 )
+         Determined from a fit to \Lambda production data.
+         See Nucl.Instrum.Meth.A614:87-104,2010 and Eur.Phys.J.C63:1-10,2009.
+    -->
+    <param type="double" name="KNO-Alpha-Hyperon"> 0.021951447 </param>
+    <param type="double" name="KNO-Beta-Hyperon">  0.041969985 </param>
+
+    <!--
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+         Levy function (KNO parameterization) parameter c at kno(z) = 2*exp(-c)*pow(c,cz+1)/Gamma(cz+1)
+         v+p    : 7.93 +/- 0.34 source: Tingjun's fit
+         v+n    : 5.22 +/- 0.15 source: Tingjun's fit
+         vbar+p : same as vn
+         vbar+n : same as vp
+    -->
+    <param type="double" name="KNO-LevyC-vp">  7.93 </param>
+    <param type="double" name="KNO-LevyC-vn">  5.22 </param>
+    <param type="double" name="KNO-LevyC-vbp"> 5.22 </param>
+    <param type="double" name="KNO-LevyC-vbn"> 7.93 </param>
+
+    <param type="double" name="KNO-EM-LevyC-vp">  7.93 </param>
+    <param type="double" name="KNO-EM-LevyC-vn">  5.22 </param>
+    <param type="double" name="KNO-EM-LevyC-vbp"> 5.22 </param>
+    <param type="double" name="KNO-EM-LevyC-vbn"> 7.93 </param>
+
+    <!--
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+         AGKY/KNO hadronization model probabilities for producing hadron pairs.
+         See Nucl.Instrum.Meth.A614:87-104,2010 and Eur.Phys.J.C63:1-10,2009.
+         Values below are modified values following strange hadron production tuning (see gDocDB-890-v1).
+         Previous values were P(pi0 pi0) = 0.30, P(pi+ pi-) = 0.60, P(K+ K-) = 0.05, P(K0 \barK0) = 0.05.
+    -->
+    <param type="double" name="KNO-ProbPi0Pi0">        0.3133 </param>
+    <param type="double" name="KNO-ProbPiplusPiminus"> 0.6267 </param>
+    <param type="double" name="KNO-ProbKplusKminus">   0.03 </param>
+    <param type="double" name="KNO-ProbK0K0bar">       0.03 </param>
+    <param type="double" name="KNO-ProbPi0Eta">        0.0 </param>
+    <param type="double" name="KNO-ProbEtaEta">        0.0   </param>
+
+    <!--
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+         Parameters controlling whether to reweight the KNO phase space decay reweighting and the actual
+         reweighting function.
+         See: A.B.Clegg, A.Donnachie, A Description of Jet Structure by pT-limited Phase Space.
+    -->
+    <param type="bool"   name="KNO-PhaseSpDec-Reweight">     true  </param>
+    <param type="double" name="KNO-PhaseSpDec-ReweightParm"> 3.5   </param>
+
+     <!--
+          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+          Parameters controlling whether to use the baryon xF and pT2 pdfs in the KNO hadronization.
+          The option to use isotropic, non-reweighted 2-body phase space decays is used for compatibility
+          with neugen/daikon.
+     -->
+     <param type="bool" name="KNO-UseBaryonPdfs-xFpT2">  true  </param>
+     <param type="bool" name="KNO-UseIsotropic2BodyDec"> true  </param>
+
+  </param_set>
+
+  <param_set name="Default-Decaying">
+    <param type="bool" name="ForceDecays">  true                                 </param>
+    <param type="alg"  name="Decayer">      genie::Pythia8Decayer2023/Default    </param>
+  </param_set>
+
+  <param_set name="Old">
+     <param type="bool" name="KNO-UseBaryonPdfs-xFpT2">  false  </param>
+     <param type="bool" name="KNO-PhaseSpDec-Reweight">  false  </param>
+  </param_set>
+
+  <param_set name="Old-Decaying">
+     <param type="bool" name="ForceDecays">           true                            </param>
+     <param type="alg"  name="Decayer">               genie::Pythia8Decayer2023/Default   </param>
+     <param type="bool" name="KNO-UseBaryonPdfs-xFpT2">   false                           </param>
+     <param type="bool" name="KNO-PhaseSpDec-Reweight">   false                           </param>
+  </param_set>
+
+</alg_conf>
diff --git a/shipgen/genie_config/DISHadronicSystemGenerator.xml b/shipgen/genie_config/DISHadronicSystemGenerator.xml
new file mode 100644
index 0000000000..51de28438f
--- /dev/null
+++ b/shipgen/genie_config/DISHadronicSystemGenerator.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<alg_conf>
+
+<!--
+
+Configuration sets for DISHadronSystemGenerator EventRecordVisitorI
+
+Algorithm Configurable Parameters:
+.......................................................................................................................
+Name                Type    Opt   Comment                                                   Default
+.......................................................................................................................
+Hadronizer          alg     No
+PreTransportDecayer alg     No
+FilterPreFragm      bool    No
+FZONE-ct0pion       double  No
+FZONE-ct0nucleon    double  No
+FZONE-Kpt2          double  No
+NUCL-R0             double  No                                                              CommonParam[NUCL]
+NUCL-NR             double  No                                                              CommonParam[NUCL]
+-->
+
+  <param_set name="Default">
+     <param type="string"  name="CommonParam"> NUCL </param>
+
+     <param type="alg"  name="Hadronizer">          genie::AGKY2019/Default                 </param>
+     <param type="alg"  name="PreTransportDecayer"> genie::UnstableParticleDecayer/BeforeHadronTransport  </param>
+     <param type="bool" name="FilterPreFragm">      false                                                 </param>
+
+     <!--
+          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+          Parameters relevant to formation zone simulation
+          - ct0 is the formation time times the speed of light (given in fm)
+          - KPt2 is the parameter multiplying pT2 in formation zone calc.
+     -->
+     <param type="double" name="FZONE-ct0pion">       0.342   </param>
+     <param type="double" name="FZONE-ct0nucleon">    2.300   </param>
+     <param type="double" name="FZONE-KPt2">          0.0     </param>
+
+  </param_set>
+
+  <param_set name="Charm">
+     <param type="alg"  name="Hadronizer">          genie::AGCharmPythia8Hadro2023/Default                </param>
+     <param type="alg"  name="PreTransportDecayer"> genie::UnstableParticleDecayer/BeforeHadronTransport  </param>
+     <param type="bool" name="FilterPreFragm">      false                                                 </param>
+
+  </param_set>
+
+</alg_conf>
diff --git a/shipgen/genie_config/Messenger.xml b/shipgen/genie_config/Messenger.xml
new file mode 100644
index 0000000000..cb61f4a5b7
--- /dev/null
+++ b/shipgen/genie_config/Messenger.xml
@@ -0,0 +1,258 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<messenger_config>
+
+  <!--
+    Defines the priority levels for GENIE message streams
+
+    The priority (in descending importance order) can be
+    FATAL, ALERT, CRIT, ERROR, WARN, NOTICE, INFO, DEBUG
+
+    To change the default priority level for a message stream
+    or to add a default priority level for a new message stream
+    a) edit this file OR b) set the GMSGCONF env. var to point to
+    your custom messenger config file. More than one custom files
+    may defined in the GMSGCONF var delimited with a ':'. Example:
+    export GMSGCONF= /home/me/msgconf1.xml:/home/me/tmp/msgconf2.xml
+
+    These files are read in addition to the default priority levels
+    file and after it. The later each file is in the Messenger
+    configuration file chain the higher priority it has, eg. if the
+    same stream is listed twice with conflicting priority then the
+    one found last is used
+   -->
+
+  <priority msgstream="Messenger">             NOTICE </priority>
+  <priority msgstream="EventLoop">             DEBUG  </priority>
+  <priority msgstream="GCPlex">                DEBUG  </priority>
+  <priority msgstream="GSimFiles">             DEBUG  </priority>
+  <priority msgstream="MiniBooNE">             DEBUG  </priority>
+
+  <priority msgstream="AhrensNCEL">            WARN   </priority>
+  <!-- EDIT: add notification for DM EL algorithm -->
+  <priority msgstream="AhrensDMEL">            WARN   </priority>
+
+  <priority msgstream="AlgFactory">            INFO   </priority>
+  <priority msgstream="Algorithm">             WARN   </priority>
+  <priority msgstream="AlgConfigPool">         WARN   </priority>
+  <priority msgstream="AlvarezRusoCohPi">      WARN   </priority>
+  <priority msgstream="BergerSehgalCohPi">     WARN   </priority>
+  <priority msgstream="SKXSec">                INFO   </priority>
+  <priority msgstream="SKKinematics">          INFO   </priority>
+  <priority msgstream="SKLepton">              INFO   </priority>
+  <priority msgstream="SKHadron">              DEBUG  </priority>
+  <priority msgstream="BardinIMD">             NOTICE </priority>
+  <priority msgstream="BaryonResList">         WARN   </priority>
+  <priority msgstream="BaryonResUtils">        WARN   </priority>
+  <priority msgstream="SppChannel">            WARN   </priority>
+  <priority msgstream="BaseHad">               NOTICE </priority>
+  <priority msgstream="BertuzzoDNuCOH">        NOTICE </priority>
+  <priority msgstream="BSKLNBaseRESPXSec2014"> NOTICE </priority>
+  <priority msgstream="MKSPPPXSec2020">        NOTICE </priority>
+  <priority msgstream="SPPXSec">               NOTICE </priority>
+  <priority msgstream="SPPCache">              NOTICE </priority>
+  <priority msgstream="BreitWignet">           INFO   </priority>
+  <priority msgstream="Bardin">                INFO   </priority>
+  <priority msgstream="BodekYang">             INFO   </priority>
+  <priority msgstream="BodekRitchie">          WARN   </priority>
+  <priority msgstream="SmithMoniz">            WARN   </priority>
+  <priority msgstream="SMQELXSec">             NOTICE </priority>
+  <priority msgstream="Cache">                 WARN   </priority>
+  <priority msgstream="CharmHad">              NOTICE </priority>
+  <priority msgstream="CFracTab">              INFO   </priority>
+  <priority msgstream="CEvNS">                 WARN   </priority>
+  <priority msgstream="COHDNu">                NOTICE </priority>
+  <priority msgstream="COHDNuXSec">            NOTICE </priority>
+  <priority msgstream="COHXSec">               NOTICE </priority>
+  <priority msgstream="COHXSecAR">             NOTICE </priority>
+  <priority msgstream="CLAP">                  NOTICE </priority>
+  <priority msgstream="COHHadronicVtx">        WARN   </priority>
+  <priority msgstream="COHKinematics">         WARN   </priority>
+  <priority msgstream="DarkSectorDecayer">     NOTICE </priority>
+  <priority msgstream="DFRHadronicVtx">        DEBUG  </priority>
+  <priority msgstream="DFRKinematics">         DEBUG  </priority>
+  <priority msgstream="Decay">                 NOTICE </priority>
+  <priority msgstream="DISSF">                 NOTICE </priority>
+  <priority msgstream="DISXSec">               NOTICE </priority>
+  <priority msgstream="DISCharmXSec">          INFO   </priority>
+  <priority msgstream="DISPXSec">              NOTICE </priority>
+  <priority msgstream="DISHadronicVtx">        WARN   </priority>
+  <priority msgstream="DISKinematics">         WARN   </priority>
+  <!-- EDIT: add notification for DM DIS processes -->
+  <priority msgstream="DMDISKinematics">       WARN   </priority>
+  <priority msgstream="DMDISPXSec">            NOTICE </priority>
+  <priority msgstream="DMDISXSec">             NOTICE </priority>
+  <!-- EDIT: add notification for DM EL processes -->
+  <priority msgstream="DMELEvent">             NOTICE </priority>
+  <priority msgstream="DMELKinematics">        WARN   </priority>
+  <priority msgstream="DMELXSec">              NOTICE </priority>
+  <priority msgstream="EventGenerator">        WARN   </priority>
+  <priority msgstream="EffectiveSF">           NOTICE </priority>
+  <priority msgstream="Elastic">               INFO   </priority>
+  <priority msgstream="EVGChain">              INFO   </priority>
+  <priority msgstream="EvGenListAssembler">    WARN   </priority>
+  <priority msgstream="ELFormFactors">         INFO   </priority>
+  <priority msgstream="EngelFormFactor">       WARN   </priority>
+  <priority msgstream="FermiMover">            NOTICE </priority>
+  <priority msgstream="FermiP">                NOTICE </priority>
+  <priority msgstream="Flux">                  NOTICE </priority>
+  <priority msgstream="FMap">                  WARN   </priority>
+  <priority msgstream="FragmRecUtils">         NOTICE </priority>
+  <priority msgstream="GEVGDriver">            WARN </priority>
+  <priority msgstream="GMCJDriver">            NOTICE </priority>
+  <priority msgstream="GEVGPool">              INFO   </priority>
+  <priority msgstream="GMCJob">                INFO   </priority>
+  <priority msgstream="GMCJMonitor">           WARN   </priority>
+  <priority msgstream="GROOTGeom">             NOTICE </priority>
+  <priority msgstream="GHEP">                  WARN   </priority>
+  <priority msgstream="GHepParticle">          INFO   </priority>
+  <priority msgstream="GHepUtils">             INFO   </priority>
+  <priority msgstream="GuiUtils">              INFO   </priority>
+  <priority msgstream="GRV98LO">               WARN   </priority>
+  <priority msgstream="GXSecFunc">             WARN   </priority>
+  <priority msgstream="HadTransp">             WARN   </priority>
+  <priority msgstream="HadronicVtx">           WARN   </priority>
+  <priority msgstream="HybridHad">             WARN   </priority>
+  <priority msgstream="IBD">                   NOTICE </priority>
+  <priority msgstream="IMDXSec">               NOTICE </priority>
+  <priority msgstream="IMDAnnihilation">       WARN   </priority>
+  <priority msgstream="IntSel">                WARN </priority>
+  <priority msgstream="IntLst">                NOTICE </priority>
+  <priority msgstream="Interaction">           NOTICE </priority>
+  <priority msgstream="Intranuke">             WARN   </priority>
+  <priority msgstream="Intranuke2018">         WARN   </priority>
+  <priority msgstream="Intranuke2019">         WARN   </priority>
+  <priority msgstream="HAIntranuke">           WARN   </priority>
+  <priority msgstream="HAIntranuke2018">       WARN   </priority>
+  <priority msgstream="HAIntranuke2019">       WARN   </priority>
+  <priority msgstream="HNIntranuke">           NOTICE </priority>
+  <priority msgstream="HNIntranuke2018">       NOTICE </priority>
+  <priority msgstream="HNIntranuke2019">       NOTICE </priority>
+  <priority msgstream="INukeData">             NOTICE </priority>
+  <priority msgstream="INukeData2018">         NOTICE </priority>
+  <priority msgstream="INukeData2019">         NOTICE </priority>
+  <priority msgstream="INukeUtils">            NOTICE </priority>
+  <priority msgstream="INukeUtils2018">        NOTICE </priority>
+  <priority msgstream="INukeUtils2019">        NOTICE </priority>
+  <priority msgstream="HINCLCascadeIntranuke"> NOTICE </priority>
+  <priority msgstream="HG4BertCascIntranuke">  NOTICE </priority>
+  <priority msgstream="INukeNucleonCorr">      NOTICE </priority>
+  <priority msgstream="TwoBodyCollision">      NOTICE </priority>
+  <priority msgstream="ISApp">                 WARN   </priority>
+  <priority msgstream="IntGenMap">             WARN   </priority>
+  <priority msgstream="KNOHad">                WARN   </priority>
+  <priority msgstream="KineLimits">            INFO   </priority>
+  <priority msgstream="Kinematics">            NOTICE </priority>
+  <priority msgstream="MArunAxialFormFactorModel"> NOTICE </priority>
+  <priority msgstream="KPhaseSpace">           NOTICE </priority>
+  <priority msgstream="LeptonicVertex">        WARN   </priority>
+  <priority msgstream="LocalFGM">              WARN   </priority>
+  <priority msgstream="LwlynSmith">            NOTICE </priority>
+  <priority msgstream="LHAPDF6">               NOTICE </priority>
+  <priority msgstream="Math">                  NOTICE </priority>
+  <priority msgstream="MEC">                   WARN  </priority>
+  <priority msgstream="MuELoss">               NOTICE </priority>
+  <priority msgstream="MultProb">              INFO   </priority>
+  <priority msgstream="Nieves">                NOTICE </priority>
+  <priority msgstream="NucDeEx">               WARN   </priority>
+  <priority msgstream="NucleonDecay">          NOTICE </priority>
+  <priority msgstream="ResonanceDecay">        WARN </priority>
+  <priority msgstream="NucleonP">              INFO   </priority>
+  <priority msgstream="Nuclear">               NOTICE </priority>
+  <priority msgstream="Numerical">             INFO   </priority>
+  <priority msgstream="NuEXSec">               INFO   </priority>
+  <priority msgstream="Ntp">                   NOTICE </priority>
+  <priority msgstream="NuVld">                 INFO   </priority>
+  <priority msgstream="NuETargetRemnant">      INFO   </priority>
+  <priority msgstream="NuEKinematics">         INFO   </priority>
+  <priority msgstream="PartonModel">           INFO   </priority>
+  <priority msgstream="PauliBlock">            NOTICE </priority>
+  <priority msgstream="ParticleDecayer">       NOTICE </priority>
+  <priority msgstream="PaschLal">              INFO   </priority>
+  <priority msgstream="PythiaDec">             WARN </priority>
+  <priority msgstream="Pythia6Decay">          WARN </priority>
+  <priority msgstream="Pythia8Decay">          WARN </priority>
+  <priority msgstream="PythiaHad">             WARN   </priority>
+  <priority msgstream="Pythia6Had">            WARN   </priority>
+  <priority msgstream="Pythia8Had">            WARN   </priority>
+  <priority msgstream="PDG">                   WARN   </priority>
+  <priority msgstream="PathL">                 NOTICE </priority>
+  <priority msgstream="PhysUtil">              WARN   </priority>
+  <priority msgstream="QELXSec">               NOTICE </priority>
+  <priority msgstream="QELCharmXSec">          NOTICE </priority>
+  <priority msgstream="QELEvent">              NOTICE </priority>
+  <priority msgstream="QELHadronicVtx">        WARN   </priority>
+  <priority msgstream="QELKinematics">         WARN   </priority>
+  <priority msgstream="RESXSec">               INFO   </priority>
+  <priority msgstream="RESPXSec">              WARN   </priority>
+  <priority msgstream="ReinSehgalCohPi">       WARN   </priority>
+  <priority msgstream="ReinDFR">               INFO   </priority>
+  <priority msgstream="ReinSehgalRes">         WARN   </priority>
+  <priority msgstream="ReinSehgalResT">        NOTICE </priority>
+  <priority msgstream="ReinSehgalResC">        NOTICE </priority>
+  <priority msgstream="ReinSehgalResTF">       NOTICE </priority>
+  <priority msgstream="ReinSehgalResCF">       NOTICE </priority>
+  <priority msgstream="ReinSehgalSpp">         NOTICE </priority>
+  <priority msgstream="RSHAmpl">               WARN   </priority>
+  <priority msgstream="SPPEventGen">          NOTICE </priority>
+  <priority msgstream="Registry">              WARN   </priority>
+  <priority msgstream="ReW">                   NOTICE </priority>
+  <priority msgstream="RESHadronicVtx">        WARN   </priority>
+  <priority msgstream="RESKinematics">         WARN   </priority>
+  <priority msgstream="RESSelector">           NOTICE </priority>
+  <priority msgstream="Rndm">                  NOTICE </priority>
+  <priority msgstream="Rosenbluth">            NOTICE </priority>
+  <priority msgstream="StrumiaVissani">        NOTICE </priority>
+  <priority msgstream="SpectralFunc1">         NOTICE </priority>
+  <priority msgstream="SpectralFunc">          NOTICE </priority>
+  <priority msgstream="Spline">                INFO   </priority>
+  <priority msgstream="Target">                INFO   </priority>
+  <priority msgstream="Utils">                 INFO   </priority>
+  <priority msgstream="Vtx">                   WARN   </priority>
+  <priority msgstream="VldContext">            NOTICE </priority>
+  <priority msgstream="VldTestInputs">         WARN   </priority>
+  <priority msgstream="XSecBase">              NOTICE </priority>
+  <priority msgstream="XSecAlgMap">            NOTICE </priority>
+  <priority msgstream="XSecSplLst">            NOTICE </priority>
+  <priority msgstream="ZExpAxialFormFactorModel"> NOTICE </priority>
+  <priority msgstream="ZExpELFormFactorModel"> WARN </priority>
+  <priority msgstream="HELeptonXSec">          WARN    </priority>
+  <priority msgstream="HELeptonKinematics">    WARN    </priority>
+  <priority msgstream="GLRESPXSec">            WARN    </priority>
+  <priority msgstream="GLRESGenerator">        WARN    </priority>
+  <priority msgstream="HENuElPXSec">           WARN    </priority>
+  <priority msgstream="HENuElGenerator">       WARN    </priority>
+  <priority msgstream="PhotonRESPXSec">        WARN    </priority>
+  <priority msgstream="PhotonRESGenerator">    WARN    </priority>
+  <priority msgstream="PhotonCOHPXSec">        WARN    </priority>
+  <priority msgstream="PhotonCOHGenerator">    WARN    </priority>
+  <priority msgstream="HEDISXSec">             WARN    </priority>
+  <priority msgstream="HEDISPXSec">            WARN    </priority>
+  <priority msgstream="HEDISGenerator">        WARN    </priority>
+  <priority msgstream="HEDISKinematics">       WARN    </priority>
+  <priority msgstream="HEDISStrucFunc">        WARN    </priority>
+  <priority msgstream="LeptoHad">              ERROR   </priority>
+  <priority msgstream="HNL">                   FATAL </priority>
+
+  <priority msgstream="gevgen">              NOTICE </priority>
+  <priority msgstream="gevgen_dm">           NOTICE </priority>
+  <priority msgstream="gevgen_ndcy">         NOTICE </priority>
+  <priority msgstream="gevgen_atmo">         NOTICE </priority>
+  <priority msgstream="gevgen_upmu">         NOTICE </priority>
+  <priority msgstream="gevgen_t2k">          NOTICE </priority>
+  <priority msgstream="gevgen_numi">         NOTICE </priority>
+  <priority msgstream="gevgen_hadron">       NOTICE </priority>
+  <priority msgstream="gvldtest">            NOTICE </priority>
+  <priority msgstream="grwght1scan">         INFO   </priority>
+  <priority msgstream="gtune">               INFO   </priority>
+  <priority msgstream="gntpc">               WARN   </priority>
+  <priority msgstream="gmkspl">              INFO   </priority>
+  <priority msgstream="gmkspl_dm">           INFO   </priority>
+  <priority msgstream="gcalchedisdiffxsec">  INFO   </priority>
+  <priority msgstream="gmkhedissf">          INFO   </priority>
+  <priority msgstream="gmkphotonsf">         INFO   </priority>
+  <priority msgstream="gevgen_hnl">          FATAL </priority>
+  <priority msgstream="gevgen_pghnl">        FATAL </priority>
+  <priority msgstream="gevald_hnl">          FATAL </priority>
+
+</messenger_config>
diff --git a/shipgen/genie_config/Messenger_inuke_verbose.xml b/shipgen/genie_config/Messenger_inuke_verbose.xml
new file mode 100644
index 0000000000..356a117ee6
--- /dev/null
+++ b/shipgen/genie_config/Messenger_inuke_verbose.xml
@@ -0,0 +1,226 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<messenger_config>
+
+  <!--
+    Defines the priority levels for GENIE message streams
+
+    The priority (in descending importance order) can be
+    FATAL, ALERT, CRIT, ERROR, WARN, NOTICE, INFO, DEBUG
+
+    To change the default priority level for a message stream
+    or to add a default priority level for a new message stream
+    a) edit this file OR b) set the GMSGCONF env. var to point to
+    your custom messenger config file. More than one custom files
+    may defined in the GMSGCONF var delimited with a ':'. Example:
+    export GMSGCONF= /home/me/msgconf1.xml:/home/me/tmp/msgconf2.xml
+
+    These files are read in addition to the default priority levels
+    file and after it. The later each file is in the Messenger
+    configuration file chain the higher priority it has, eg. if the
+    same stream is listed twice with conflicting priority then the
+    one found last is used
+   -->
+
+  <priority msgstream="Messenger">             NOTICE </priority>
+  <priority msgstream="AhrensNCEL">            WARN   </priority>
+  <priority msgstream="AlgFactory">            INFO   </priority>
+  <priority msgstream="Algorithm">             WARN   </priority>
+  <priority msgstream="AlgConfigPool">         WARN   </priority>
+  <priority msgstream="AlvarezRusoCohPi">      WARN   </priority>
+  <priority msgstream="BergerSehgalCohPi">     WARN   </priority>
+  <priority msgstream="SKXSec">                INFO   </priority>
+  <priority msgstream="SKKinematics">          INFO   </priority>
+  <priority msgstream="SKLepton">              INFO   </priority>
+  <priority msgstream="SKHadron">              DEBUG  </priority>
+  <priority msgstream="BardinIMD">             NOTICE </priority>
+  <priority msgstream="BaryonResList">         WARN   </priority>
+  <priority msgstream="BaryonResUtils">        WARN   </priority>
+  <priority msgstream="SppChannel">            WARN   </priority>
+  <priority msgstream="BaseHad">               NOTICE </priority>
+  <priority msgstream="BreitWignet">           INFO   </priority>
+  <priority msgstream="Bardin">                INFO   </priority>
+  <priority msgstream="BSKLNBaseRESPXSec2014"> NOTICE </priority>
+  <priority msgstream="MKSPPPXSec2020">        NOTICE </priority>
+  <priority msgstream="SPPXSec">               NOTICE </priority>
+  <priority msgstream="SPPCache">              NOTICE </priority>
+  <priority msgstream="BodekYang">             INFO   </priority>
+  <priority msgstream="BodekRitchie">          WARN   </priority>
+  <priority msgstream="SmithMoniz">            WARN   </priority>
+  <priority msgstream="SMQELXSec">             NOTICE </priority>
+  <priority msgstream="Cache">                 WARN   </priority>
+  <priority msgstream="CharmHad">              NOTICE </priority>
+  <priority msgstream="CFracTab">              INFO   </priority>
+  <priority msgstream="COHXSec">               NOTICE </priority>
+  <priority msgstream="COHXSecAR">             NOTICE </priority>
+  <priority msgstream="CLAP">                  NOTICE </priority>
+  <priority msgstream="COHHadronicVtx">        INFO   </priority>
+  <priority msgstream="COHKinematics">         WARN   </priority>
+  <priority msgstream="DFRHadronicVtx">        DEBUG  </priority>
+  <priority msgstream="DFRKinematics">         DEBUG  </priority>
+  <priority msgstream="Decay">                 NOTICE </priority>
+  <priority msgstream="DISSF">                 NOTICE </priority>
+  <priority msgstream="DISXSec">               WARN   </priority>
+  <priority msgstream="DISCharmXSec">          INFO   </priority>
+  <priority msgstream="DISPXSec">              NOTICE </priority>
+  <priority msgstream="DISHadronicVtx">        INFO   </priority>
+  <priority msgstream="DISKinematics">         WARN   </priority>
+  <priority msgstream="EventGenerator">        NOTICE </priority>
+  <priority msgstream="EffectiveSF">           NOTICE </priority>
+  <priority msgstream="Elastic">               INFO   </priority>
+  <priority msgstream="EVGChain">              INFO   </priority>
+  <priority msgstream="EvGenListAssembler">    WARN   </priority>
+  <priority msgstream="ELFormFactors">         INFO   </priority>
+  <priority msgstream="FermiMover">            INFO   </priority>
+  <priority msgstream="FermiP">                NOTICE </priority>
+  <priority msgstream="Flux">                  NOTICE </priority>
+  <priority msgstream="FMap">                  WARN   </priority>
+  <priority msgstream="FragmRecUtils">         NOTICE </priority>
+  <priority msgstream="GEVGDriver">            NOTICE </priority>
+  <priority msgstream="GMCJDriver">            WARN   </priority>
+  <priority msgstream="GEVGPool">              INFO   </priority>
+  <priority msgstream="GMCJob">                INFO   </priority>
+  <priority msgstream="GMCJMonitor">           WARN   </priority>
+  <priority msgstream="GROOTGeom">             NOTICE </priority>
+  <priority msgstream="GHEP">                  WARN   </priority>
+  <priority msgstream="GHepParticle">          INFO   </priority>
+  <priority msgstream="GHepUtils">             INFO   </priority>
+  <priority msgstream="GuiUtils">              INFO   </priority>
+  <priority msgstream="GridDim">               WARN   </priority>
+  <priority msgstream="GXSecFunc">             WARN   </priority>
+  <priority msgstream="GLRES">                 WARN   </priority>
+  <priority msgstream="HadTransp">             INFO   </priority>
+  <priority msgstream="HadronicVtx">           NOTICE </priority>
+  <priority msgstream="HybridHad">             INFO   </priority>
+  <priority msgstream="IBD">                   NOTICE </priority>
+  <priority msgstream="IMDXSec">               NOTICE </priority>
+  <priority msgstream="IMDAnnihilation">       NOTICE </priority>
+  <priority msgstream="IntSel">                NOTICE </priority>
+  <priority msgstream="IntLst">                NOTICE </priority>
+  <priority msgstream="Interaction">           NOTICE </priority>
+  <priority msgstream="Intranuke">             INFO   </priority>
+  <priority msgstream="Intranuke2018">         INFO   </priority>
+  <priority msgstream="Intranuke2019">         INFO   </priority>
+  <priority msgstream="HAIntranuke">           INFO   </priority>
+  <priority msgstream="HAIntranuke2018">       INFO   </priority>
+  <priority msgstream="HNIntranuke2019">       NOTICE </priority>
+  <priority msgstream="HAIntranuke2018">       INFO   </priority>
+  <priority msgstream="HNIntranuke2019">       NOTICE </priority>
+  <priority msgstream="INukeData">             NOTICE </priority>
+  <priority msgstream="INukeData2018">         NOTICE </priority>
+  <priority msgstream="INukeData2019">         NOTICE </priority>
+  <priority msgstream="INukeUtils">            INFO   </priority>
+  <priority msgstream="INukeUtils2018">        INFO   </priority>
+  <priority msgstream="INukeUtils2019">        INFO   </priority>
+  <priority msgstream="HINCLCascadeIntranuke"> INFO   </priority>
+  <priority msgstream="HG4BertCascIntranuke">  INFO   </priority>
+  <priority msgstream="INukeNucleonCorr">      INFO   </priority>
+  <priority msgstream="TwoBodyCollision">      INFO   </priority>
+  <priority msgstream="ISApp">                 INFO   </priority>
+  <priority msgstream="IntGenMap">             WARN   </priority>
+  <priority msgstream="KNOHad">                NOTICE </priority>
+  <priority msgstream="KineLimits">            INFO   </priority>
+  <priority msgstream="Kinematics">            INFO   </priority>
+  <priority msgstream="MArunAxialFormFactorModel"> INFO </priority>
+  <priority msgstream="LeptonicVertex">        NOTICE </priority>
+  <priority msgstream="LocalFGM">              WARN   </priority>
+  <priority msgstream="LwlynSmith">            NOTICE </priority>
+  <priority msgstream="Math">                  NOTICE </priority>
+  <priority msgstream="MEC">                   INFO   </priority>
+  <priority msgstream="MuELoss">               NOTICE </priority>
+  <priority msgstream="MultProb">              INFO   </priority>
+  <priority msgstream="Nieves">                NOTICE </priority>
+  <priority msgstream="NucDeEx">               NOTICE </priority>
+  <priority msgstream="NucleonDecay">          NOTICE </priority>
+  <priority msgstream="ResonanceDecay">        NOTICE </priority>
+  <priority msgstream="NucleonP">              INFO   </priority>
+  <priority msgstream="Nuclear">               NOTICE </priority>
+  <priority msgstream="Numerical">             INFO   </priority>
+  <priority msgstream="NuEXSec">               INFO   </priority>
+  <priority msgstream="Ntp">                   NOTICE </priority>
+  <priority msgstream="NuVld">                 INFO   </priority>
+  <priority msgstream="NuETargetRemnant">      INFO   </priority>
+  <priority msgstream="NuEKinematics">         INFO   </priority>
+  <priority msgstream="PartonModel">           INFO   </priority>
+  <priority msgstream="PauliBlock">            INFO   </priority>
+  <priority msgstream="ParticleDecayer">       WARN   </priority>
+  <priority msgstream="PaschLal">              INFO   </priority>
+  <priority msgstream="PythiaDec">             NOTICE </priority>
+  <priority msgstream="Pythia6Decay">          NOTICE </priority>
+  <priority msgstream="Pythia8Decay">          NOTICE </priority>
+  <priority msgstream="PythiaHad">             NOTICE </priority>
+  <priority msgstream="Pythia6Had">            NOTICE </priority>
+  <priority msgstream="Pythia8Had">            NOTICE </priority>
+  <priority msgstream="PDG">                   INFO   </priority>
+  <priority msgstream="PathL">                 NOTICE </priority>
+  <priority msgstream="PhysUtil">              NOTICE </priority>
+  <priority msgstream="QELXSec">               NOTICE </priority>
+  <priority msgstream="QELCharmXSec">          NOTICE </priority>
+  <priority msgstream="QELEvent">              INFO   </priority>
+  <priority msgstream="QELHadronicVtx">        INFO   </priority>
+  <priority msgstream="QELKinematics">         INFO   </priority>
+  <priority msgstream="SPPEventGen">           INFO   </priority>
+  <priority msgstream="RESXSec">               INFO   </priority>
+  <priority msgstream="RESPXSec">              WARN   </priority>
+  <priority msgstream="ReinSehgalCohPi">       WARN   </priority>
+  <priority msgstream="ReinDFR">               WARN   </priority>
+  <priority msgstream="ReinSehgalRes">         WARN   </priority>
+  <priority msgstream="ReinSehgalResT">        NOTICE </priority>
+  <priority msgstream="ReinSehgalResC">        NOTICE </priority>
+  <priority msgstream="ReinSehgalResTF">       NOTICE </priority>
+  <priority msgstream="ReinSehgalResCF">       NOTICE </priority>
+  <priority msgstream="ReinSehgalSpp">         NOTICE </priority>
+  <priority msgstream="RSHAmpl">               WARN   </priority>
+  <priority msgstream="Registry">              WARN   </priority>
+  <priority msgstream="ReW">                   DEBUG  </priority>
+  <priority msgstream="RESHadronicVtx">        INFO   </priority>
+  <priority msgstream="RESKinematics">         WARN   </priority>
+  <priority msgstream="RESSelector">           NOTICE </priority>
+  <priority msgstream="Rndm">                  NOTICE </priority>
+  <priority msgstream="Rosenbluth">            NOTICE </priority>
+  <priority msgstream="StrumiaVissani">        NOTICE </priority>
+  <priority msgstream="SpectralFunc1">         NOTICE </priority>
+  <priority msgstream="SpectralFunc">          NOTICE </priority>
+  <priority msgstream="Spline">                INFO   </priority>
+  <priority msgstream="Target">                INFO   </priority>
+  <priority msgstream="Utils">                 INFO   </priority>
+  <priority msgstream="Vtx">                   INFO   </priority>
+  <priority msgstream="VldContext">            NOTICE </priority>
+  <priority msgstream="VldTestInputs">         WARN   </priority>
+  <priority msgstream="XSecBase">              NOTICE </priority>
+  <priority msgstream="XSecAlgMap">            NOTICE </priority>
+  <priority msgstream="XSecSplLst">            NOTICE </priority>
+  <priority msgstream="HELeptonXSec">          WARN   </priority>
+  <priority msgstream="HELeptonKinematics">    WARN   </priority>
+  <priority msgstream="GLRESPXSec">            WARN   </priority>
+  <priority msgstream="GLRESGenerator">        WARN   </priority>
+  <priority msgstream="HENuElPXSec">           WARN   </priority>
+  <priority msgstream="HENuElGenerator">       WARN   </priority>
+  <priority msgstream="PhotonRESPXSec">        WARN   </priority>
+  <priority msgstream="PhotonRESGenerator">    WARN   </priority>
+  <priority msgstream="PhotonCOHPXSec">        WARN   </priority>
+  <priority msgstream="PhotonCOHGenerator">    WARN   </priority>
+  <priority msgstream="HEDISXSec">             WARN   </priority>
+  <priority msgstream="HEDISPXSec">            WARN   </priority>
+  <priority msgstream="HEDISGenerator">        WARN   </priority>
+  <priority msgstream="HEDISKinematics">       WARN   </priority>
+  <priority msgstream="HEDISStrucFunc">        WARN   </priority>
+  <priority msgstream="LeptoHad">              ERROR  </priority>
+
+  <priority msgstream="gevgen">                NOTICE </priority>
+  <priority msgstream="gevgen_ndcy">           NOTICE </priority>
+  <priority msgstream="gevgen_atmo">           NOTICE </priority>
+  <priority msgstream="gevgen_upmu">           NOTICE </priority>
+  <priority msgstream="gevgen_t2k">            NOTICE </priority>
+  <priority msgstream="gevgen_numi">           NOTICE </priority>
+  <priority msgstream="gevgen_hadron">         NOTICE </priority>
+  <priority msgstream="grwght1scan">           INFO   </priority>
+  <priority msgstream="gvldtest">              NOTICE </priority>
+  <priority msgstream="gtune">                 INFO   </priority>
+  <priority msgstream="gntpc">                 INFO   </priority>
+  <priority msgstream="gmkspl">                INFO   </priority>
+  <priority msgstream="gcalchedisdiffxsec">    INFO   </priority>
+  <priority msgstream="gmkhedissf">            INFO   </priority>
+  <priority msgstream="gmkphotonsf">           INFO   </priority>
+
+</messenger_config>
diff --git a/shipgen/genie_config/Messenger_laconic.xml b/shipgen/genie_config/Messenger_laconic.xml
new file mode 100644
index 0000000000..c5ebddc93f
--- /dev/null
+++ b/shipgen/genie_config/Messenger_laconic.xml
@@ -0,0 +1,247 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<messenger_config>
+
+  <!--
+    Defines the priority levels for GENIE message streams
+
+    The priority (in descending importance order) can be
+    FATAL, ALERT, CRIT, ERROR, WARN, NOTICE, INFO, DEBUG
+
+    To change the default priority level for a message stream
+    or to add a default priority level for a new message stream
+    a) edit this file OR b) set the GMSGCONF env. var to point to
+    your custom messenger config file. More than one custom files
+    may defined in the GMSGCONF var delimited with a ':'. Example:
+    export GMSGCONF= /home/me/msgconf1.xml:/home/me/tmp/msgconf2.xml
+
+    These files are read in addition to the default priority levels
+    file and after it. The later each file is in the Messenger
+    configuration file chain the higher priority it has, eg. if the
+    same stream is listed twice with conflicting priority then the
+    one found last is used
+   -->
+  <priority msgstream="ResonanceDecay">                WARN   </priority>
+  <priority msgstream="Pythia6Decay">                  WARN   </priority>
+  <priority msgstream="Pythia8Decay">                  WARN   </priority>
+  <priority msgstream="Messenger">                     WARN   </priority>
+  <priority msgstream="AhrensNCEL">                    WARN   </priority>
+  <!-- EDIT: add notification for DM EL algorithm -->
+  <priority msgstream="AhrensDMEL">                    WARN   </priority>
+  <priority msgstream="AlgFactory">                    WARN   </priority>
+  <priority msgstream="Algorithm">                     WARN   </priority>
+  <priority msgstream="AlgConfigPool">                 WARN   </priority>
+  <priority msgstream="AlvarezRusoCohPi">              WARN   </priority>
+  <priority msgstream="BergerSehgalCohPi">             WARN   </priority>
+  <priority msgstream="SKXSec">                        WARN   </priority>
+  <priority msgstream="SKKinematics">                  WARN   </priority>
+  <priority msgstream="SKLepton">                      WARN   </priority>
+  <priority msgstream="SKHadron">                      WARN   </priority>
+  <priority msgstream="BardinIMD">                     WARN   </priority>
+  <priority msgstream="BaryonResList">                 WARN   </priority>
+  <priority msgstream="BaryonResUtils">                WARN   </priority>
+  <priority msgstream="SppChannel">                    WARN   </priority>
+  <priority msgstream="BaseHad">                       WARN   </priority>
+  <priority msgstream="BertuzzoDNuCOH">                WARN   </priority>
+  <priority msgstream="BreitWignet">                   WARN   </priority>
+  <priority msgstream="Bardin">                        WARN   </priority>
+  <priority msgstream="BSKLNBaseRESPXSec2014">         WARN   </priority>
+  <priority msgstream="MKSPPPXSec2020">                WARN   </priority>
+  <priority msgstream="SPPXSec">                       WARN   </priority>
+  <priority msgstream="SPPCache">                      WARN   </priority>
+  <priority msgstream="BodekYang">                     WARN   </priority>
+  <priority msgstream="BodekRitchie">                  WARN   </priority>
+  <priority msgstream="SmithMoniz">                    WARN   </priority>
+  <priority msgstream="SMQELXSec">                     WARN   </priority>
+  <priority msgstream="Cache">                         WARN   </priority>
+  <priority msgstream="CEvNS">                         WARN   </priority>
+  <priority msgstream="COHDNu">                        WARN   </priority>
+  <priority msgstream="COHDNuXSec">                    WARN   </priority>
+  <priority msgstream="CharmHad">                      WARN   </priority>
+  <priority msgstream="CFracTab">                      WARN   </priority>
+  <priority msgstream="COHXSec">                       WARN   </priority>
+  <priority msgstream="COHXSecAR">                     WARN   </priority>
+  <priority msgstream="CLAP">                          WARN   </priority>
+  <priority msgstream="COHHadronicVtx">                WARN   </priority>
+  <priority msgstream="COHKinematics">                 WARN   </priority>
+  <priority msgstream="DarkSectorDecayer">             WARN   </priority>
+  <priority msgstream="Decay">                         WARN   </priority>
+  <priority msgstream="DISSF">                         WARN   </priority>
+  <priority msgstream="DISXSec">                       WARN   </priority>
+  <priority msgstream="DISCharmXSec">                  WARN   </priority>
+  <priority msgstream="DISPXSec">                      WARN   </priority>
+  <priority msgstream="DISHadronicVtx">                WARN   </priority>
+  <priority msgstream="DISKinematics">                 WARN   </priority>
+  <!-- EDIT: add notification for DM DIS processes -->
+  <priority msgstream="DMDISKinematics">               WARN   </priority>
+  <priority msgstream="DMDISPXSec">                    WARN   </priority>
+  <priority msgstream="DMDISXSec">                     WARN   </priority>
+  <!-- EDIT: add notification for DM EL processes -->
+  <priority msgstream="DMELEvent">                     WARN   </priority>
+  <priority msgstream="DMELKinematics">                WARN   </priority>
+  <priority msgstream="DMELXSec">                      WARN   </priority>
+  <priority msgstream="EventGenerator">                WARN   </priority>
+  <priority msgstream="EffectiveSF">                   WARN   </priority>
+  <priority msgstream="Elastic">                       WARN   </priority>
+  <priority msgstream="EVGChain">                      WARN   </priority>
+  <priority msgstream="EvGenListAssembler">            WARN   </priority>
+  <priority msgstream="ELFormFactors">                 WARN   </priority>
+  <priority msgstream="EngelFormFactor">               WARN   </priority>
+  <priority msgstream="FermiMover">                    WARN   </priority>
+  <priority msgstream="FermiP">                        WARN   </priority>
+  <priority msgstream="Flux">                          WARN   </priority>
+  <priority msgstream="FragmRecUtils">                 WARN   </priority>
+  <priority msgstream="FMap">                          WARN   </priority>
+  <priority msgstream="GEVGDriver">                    WARN   </priority>
+  <priority msgstream="GMCJDriver">                    WARN   </priority>
+  <priority msgstream="GEVGPool">                      WARN   </priority>
+  <priority msgstream="GMCJob">                        WARN   </priority>
+  <priority msgstream="GMCJMonitor">                   WARN   </priority>
+  <priority msgstream="GROOTGeom">                     WARN   </priority>
+  <priority msgstream="GHEP">                          WARN   </priority>
+  <priority msgstream="GHepParticle">                  WARN   </priority>
+  <priority msgstream="GHepUtils">                     WARN   </priority>
+  <priority msgstream="GuiUtils">                      WARN   </priority>
+  <priority msgstream="GRV98LO">                       WARN   </priority>
+  <priority msgstream="GXSecFunc">                     WARN   </priority>
+  <priority msgstream="GLRES">                         WARN   </priority>
+  <priority msgstream="GIBUU">                         WARN   </priority>
+  <priority msgstream="HadTransp">                     WARN   </priority>
+  <priority msgstream="HadronicVtx">                   WARN   </priority>
+  <priority msgstream="HybridHad">                     WARN   </priority>
+  <priority msgstream="IBD">                           WARN   </priority>
+  <priority msgstream="IMDXSec">                       WARN   </priority>
+  <priority msgstream="IMDAnnihilation">               WARN   </priority>
+  <priority msgstream="IntSel">                        WARN   </priority>
+  <priority msgstream="IntLst">                        WARN   </priority>
+  <priority msgstream="Interaction">                   WARN   </priority>
+  <priority msgstream="Intranuke">                     WARN   </priority>
+  <priority msgstream="Intranuke2019">                 WARN   </priority>
+  <priority msgstream="Intranuke2018">                 WARN   </priority>
+  <priority msgstream="HAIntranuke">                   WARN   </priority>
+  <priority msgstream="HAIntranuke2019">               WARN   </priority>
+  <priority msgstream="HAIntranuke2018">               WARN   </priority>
+  <priority msgstream="HNIntranuke">                   WARN   </priority>
+  <priority msgstream="HNIntranuke2019">               WARN   </priority>
+  <priority msgstream="HNIntranuke2018">               WARN   </priority>
+  <priority msgstream="INukeData">                     WARN   </priority>
+  <priority msgstream="INukeData2019">                 WARN   </priority>
+  <priority msgstream="INukeData2018">                 WARN   </priority>
+  <priority msgstream="INukeUtils">                    WARN   </priority>
+  <priority msgstream="INukeUtils2019">                WARN   </priority>
+  <priority msgstream="INukeUtils2018">                WARN   </priority>
+  <priority msgstream="HINCLCascadeIntranuke">         WARN   </priority>
+  <priority msgstream="HG4BertCascIntranuke">          WARN   </priority>
+  <priority msgstream="INukeNucleonCorr">              WARN   </priority>
+  <priority msgstream="TwoBodyCollision">              WARN   </priority>
+  <priority msgstream="ISApp">                         WARN   </priority>
+  <priority msgstream="IntGenMap">                     WARN   </priority>
+  <priority msgstream="KNOHad">                        WARN   </priority>
+  <priority msgstream="KineLimits">                    WARN   </priority>
+  <priority msgstream="Kinematics">                    WARN   </priority>
+  <priority msgstream="MArunAxialFormFactorModel"> WARN </priority>
+  <priority msgstream="LeptonicVertex">                WARN   </priority>
+  <priority msgstream="LocalFGM">                      WARN   </priority>
+  <priority msgstream="LwlynSmith">                    WARN   </priority>
+  <priority msgstream="LHAPDF6">                       WARN   </priority>
+  <priority msgstream="Math">                          WARN   </priority>
+  <priority msgstream="MEC">                           WARN   </priority>
+  <priority msgstream="MuELoss">                       WARN   </priority>
+  <priority msgstream="MultProb">                      WARN   </priority>
+  <priority msgstream="Nieves">                        WARN   </priority>
+  <priority msgstream="NucDeEx">                       WARN   </priority>
+  <priority msgstream="NucleonDecay">                  WARN   </priority>
+  <priority msgstream="ResonanceDecay">                WARN   </priority>
+  <priority msgstream="NucleonP">                      WARN   </priority>
+  <priority msgstream="Nuclear">                       WARN   </priority>
+  <priority msgstream="Numerical">                     WARN   </priority>
+  <priority msgstream="NuEXSec">                       WARN   </priority>
+  <priority msgstream="Ntp">                           WARN   </priority>
+  <priority msgstream="NuVld">                         WARN   </priority>
+  <priority msgstream="NeuGen">                        WARN   </priority>
+  <priority msgstream="NuETargetRemnant">              WARN   </priority>
+  <priority msgstream="NuEKinematics">                 WARN   </priority>
+  <priority msgstream="PartonModel">                   WARN   </priority>
+  <priority msgstream="PauliBlock">                    WARN   </priority>
+  <priority msgstream="ParticleDecayer">               WARN   </priority>
+  <priority msgstream="PaschLal">                      WARN   </priority>
+  <priority msgstream="PythiaDec">                     WARN   </priority>
+  <priority msgstream="Pythia6Decay">                  WARN   </priority>
+  <priority msgstream="Pythia8Decay">                  WARN   </priority>
+  <priority msgstream="PythiaHad">                     WARN   </priority>
+  <priority msgstream="Pythia6Had">                    WARN   </priority>
+  <priority msgstream="Pythia8Had">                    WARN   </priority>
+  <priority msgstream="PDG">                           WARN   </priority>
+  <priority msgstream="PathL">                         WARN   </priority>
+  <priority msgstream="PhysUtil">                      WARN   </priority>
+  <priority msgstream="QELXSec">                       WARN   </priority>
+  <priority msgstream="QELCharmXSec">                  WARN   </priority>
+  <priority msgstream="QELEvent">                      WARN   </priority>
+  <priority msgstream="QELHadronicVtx">                WARN   </priority>
+  <priority msgstream="QELKinematics">                 WARN   </priority>
+  <priority msgstream="SPPEventGen">                   WARN </priority>
+  <priority msgstream="RESXSec">                       WARN   </priority>
+  <priority msgstream="RESPXSec">                      WARN   </priority>
+  <priority msgstream="ReinSehgalCohPi">               WARN   </priority>
+  <priority msgstream="ReinSehgalRes">                 WARN   </priority>
+  <priority msgstream="ReinSehgalResT">                WARN   </priority>
+  <priority msgstream="ReinSehgalResC">                WARN   </priority>
+  <priority msgstream="ReinSehgalResTF">               WARN   </priority>
+  <priority msgstream="ReinSehgalResCF">               WARN   </priority>
+  <priority msgstream="ReinSehgalSpp">                 WARN   </priority>
+  <priority msgstream="RSHAmpl">                       WARN   </priority>
+  <priority msgstream="Registry">                      WARN   </priority>
+  <priority msgstream="ReW">                           WARN   </priority>
+  <priority msgstream="RESHadronicVtx">                WARN   </priority>
+  <priority msgstream="RESKinematics">                 WARN   </priority>
+  <priority msgstream="RESSelector">                   WARN   </priority>
+  <priority msgstream="Rndm">                          WARN   </priority>
+  <priority msgstream="Rosenbluth">                    WARN   </priority>
+  <priority msgstream="StrumiaVissani">                WARN   </priority>
+  <priority msgstream="SpectralFunc1">                 WARN   </priority>
+  <priority msgstream="SpectralFunc">                  WARN   </priority>
+  <priority msgstream="Spline">                        WARN   </priority>
+  <priority msgstream="Target">                        WARN   </priority>
+  <priority msgstream="TransverseEnhancementFFModel">  WARN   </priority>
+  <priority msgstream="Utils">                         WARN   </priority>
+  <priority msgstream="Vtx">                           WARN   </priority>
+  <priority msgstream="VldContext">                    WARN   </priority>
+  <priority msgstream="VldTestInputs">                 WARN   </priority>
+  <priority msgstream="XSecBase">                      WARN   </priority>
+  <priority msgstream="XSecAlgMap">                    WARN   </priority>
+  <priority msgstream="XSecSplLst">                    WARN   </priority>
+  <priority msgstream="HELeptonXSec">                  WARN   </priority>
+  <priority msgstream="HELeptonKinematics">            WARN   </priority>
+  <priority msgstream="GLRESPXSec">                    WARN   </priority>
+  <priority msgstream="GLRESGenerator">                WARN   </priority>
+  <priority msgstream="HENuElPXSec">                   WARN   </priority>
+  <priority msgstream="HENuElGenerator">               WARN   </priority>
+  <priority msgstream="PhotonRESPXSec">                WARN   </priority>
+  <priority msgstream="PhotonRESGenerator">            WARN   </priority>
+  <priority msgstream="PhotonCOHPXSec">                WARN   </priority>
+  <priority msgstream="PhotonCOHGenerator">            WARN   </priority>
+  <priority msgstream="HEDISXSec">                     WARN   </priority>
+  <priority msgstream="HEDISPXSec">                    WARN   </priority>
+  <priority msgstream="HEDISGenerator">                WARN   </priority>
+  <priority msgstream="HEDISKinematics">               WARN   </priority>
+  <priority msgstream="HEDISStrucFunc">                WARN   </priority>
+  <priority msgstream="LeptoHad">                      WARN   </priority>
+
+  <priority msgstream="gevgen">                        WARN   </priority>
+  <priority msgstream="gevgen_dm">                     WARN   </priority>
+  <priority msgstream="gevgen_ndcy">                   WARN   </priority>
+  <priority msgstream="gevgen_atmo">                   WARN   </priority>
+  <priority msgstream="gevgen_upmu">                   WARN   </priority>
+  <priority msgstream="gevgen_t2k">                    WARN   </priority>
+  <priority msgstream="gevgen_numi">                   WARN   </priority>
+  <priority msgstream="gevgen_hadron">                 WARN   </priority>
+  <priority msgstream="gvldtest">                      WARN   </priority>
+  <priority msgstream="grwght1scan">                   WARN   </priority>
+  <priority msgstream="gntpc">                         WARN   </priority>
+  <priority msgstream="gmkspl">                        WARN   </priority>
+  <priority msgstream="gmkspl_dm">                     WARN   </priority>
+  <priority msgstream="gcalchedisdiffxsec">            WARN   </priority>
+  <priority msgstream="gmkhedissf">                    WARN   </priority>
+  <priority msgstream="gmkphotonsf">                   WARN   </priority>
+
+</messenger_config>
diff --git a/shipgen/genie_config/Messenger_rambling.xml b/shipgen/genie_config/Messenger_rambling.xml
new file mode 100644
index 0000000000..c212f2456c
--- /dev/null
+++ b/shipgen/genie_config/Messenger_rambling.xml
@@ -0,0 +1,243 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<messenger_config>
+
+  <!--
+    Defines the priority levels for GENIE message streams
+
+    The priority (in descending importance order) can be
+    FATAL, ALERT, CRIT, ERROR, WARN, NOTICE, INFO, DEBUG
+
+    To change the default priority level for a message stream
+    or to add a default priority level for a new message stream
+    a) edit this file OR b) set the GMSGCONF env. var to point to
+    your custom messenger config file. More than one custom files
+    may defined in the GMSGCONF var delimited with a ':'. Example:
+    export GMSGCONF= /home/me/msgconf1.xml:/home/me/tmp/msgconf2.xml
+
+    These files are read in addition to the default priority levels
+    file and after it. The later each file is in the Messenger
+    configuration file chain the higher priority it has, eg. if the
+    same stream is listed twice with conflicting priority then the
+    one found last is used
+   -->
+
+  <priority msgstream="Messenger">             NOTICE </priority>
+  <priority msgstream="AhrensNCEL">            WARN   </priority>
+  <!-- EDIT: add notification for DM EL algorithm -->
+  <priority msgstream="AhrensDMEL">            WARN   </priority>
+  <priority msgstream="AlgFactory">            INFO   </priority>
+  <priority msgstream="Algorithm">             WARN   </priority>
+  <priority msgstream="AlgConfigPool">         WARN   </priority>
+  <priority msgstream="AlvarezRusoCohPi">      INFO   </priority>
+  <priority msgstream="BergerSehgalCohPi">     INFO   </priority>
+  <priority msgstream="SKXSec">                INFO   </priority>
+  <priority msgstream="SKKinematics">          INFO   </priority>
+  <priority msgstream="SKLepton">              INFO   </priority>
+  <priority msgstream="SKHadron">              DEBUG  </priority>
+  <priority msgstream="BardinIMD">             NOTICE </priority>
+  <priority msgstream="BaryonResList">         WARN   </priority>
+  <priority msgstream="BaryonResUtils">        WARN   </priority>
+  <priority msgstream="SppChannel">            WARN   </priority>
+  <priority msgstream="BaseHad">               NOTICE </priority>
+  <priority msgstream="BertuzzoDNuCOH">        INFO </priority>
+  <priority msgstream="BSKLNBaseRESPXSec2014"> INFO   </priority>
+  <priority msgstream="MKSPPPXSec2020">        INFO   </priority>
+  <priority msgstream="SPPXSec">               INFO   </priority>
+  <priority msgstream="SPPCache">              INFO   </priority>
+  <priority msgstream="BreitWignet">           INFO   </priority>
+  <priority msgstream="Bardin">                INFO   </priority>
+  <priority msgstream="BodekYang">             INFO   </priority>
+  <priority msgstream="BodekRitchie">          WARN   </priority>
+  <priority msgstream="SmithMoniz">            WARN   </priority>
+  <priority msgstream="SMQELXSec">             NOTICE </priority>
+  <priority msgstream="Cache">                 WARN   </priority>
+  <priority msgstream="CharmHad">              NOTICE </priority>
+  <priority msgstream="CFracTab">              INFO   </priority>
+  <priority msgstream="CEvNS">                 NOTICE </priority>
+  <priority msgstream="COHDNu">                NOTICE </priority>
+  <priority msgstream="COHDNuXSec">            NOTICE </priority>
+  <priority msgstream="COHXSec">               NOTICE </priority>
+  <priority msgstream="COHXSecAR">             NOTICE </priority>
+  <priority msgstream="CLAP">                  NOTICE </priority>
+  <priority msgstream="COHHadronicVtx">        INFO   </priority>
+  <priority msgstream="COHKinematics">         NOTICE </priority>
+  <priority msgstream="DarkSectorDecayer">     INFO   </priority>
+  <priority msgstream="DFRHadronicVtx">        DEBUG  </priority>
+  <priority msgstream="DFRKinematics">         DEBUG  </priority>
+  <priority msgstream="Decay">                 NOTICE </priority>
+  <priority msgstream="DISSF">                 NOTICE </priority>
+  <priority msgstream="DISXSec">               NOTICE </priority>
+  <priority msgstream="DISCharmXSec">          INFO   </priority>
+  <priority msgstream="DISPXSec">              NOTICE </priority>
+  <priority msgstream="DISHadronicVtx">        INFO   </priority>
+  <priority msgstream="DISKinematics">         NOTICE </priority>
+  <!-- EDIT: add notification for DM DIS processes -->
+  <priority msgstream="DMDISKinematics">       NOTICE </priority>
+  <priority msgstream="DMDISPXSec">            NOTICE </priority>
+  <priority msgstream="DMDISXSec">             NOTICE </priority>
+  <!-- EDIT: add notification for DM EL processes -->
+  <priority msgstream="DMELEvent">             NOTICE </priority>
+  <priority msgstream="DMELKinematics">        NOTICE </priority>
+  <priority msgstream="DMELXSec">              NOTICE </priority>
+  <priority msgstream="EventGenerator">        NOTICE </priority>
+  <priority msgstream="EffectiveSF">           INFO   </priority>
+  <priority msgstream="Elastic">               INFO   </priority>
+  <priority msgstream="EVGChain">              INFO   </priority>
+  <priority msgstream="EvGenListAssembler">    WARN   </priority>
+  <priority msgstream="ELFormFactors">         INFO   </priority>
+  <priority msgstream="EngelFormFactor">       INFO   </priority>
+  <priority msgstream="FermiMover">            INFO   </priority>
+  <priority msgstream="FermiP">                NOTICE </priority>
+  <priority msgstream="Flux">                  NOTICE </priority>
+  <priority msgstream="FMap">                  WARN   </priority>
+  <priority msgstream="FragmRecUtils">         NOTICE </priority>
+  <priority msgstream="GEVGDriver">            NOTICE </priority>
+  <priority msgstream="GMCJDriver">            NOTICE </priority>
+  <priority msgstream="GEVGPool">              INFO   </priority>
+  <priority msgstream="GMCJob">                INFO   </priority>
+  <priority msgstream="GMCJMonitor">           WARN   </priority>
+  <priority msgstream="GROOTGeom">             NOTICE </priority>
+  <priority msgstream="GHEP">                  WARN   </priority>
+  <priority msgstream="GHepParticle">          INFO   </priority>
+  <priority msgstream="GHepUtils">             INFO   </priority>
+  <priority msgstream="GuiUtils">              INFO   </priority>
+  <priority msgstream="GRV98LO">               NOTICE </priority>
+  <priority msgstream="GXSecFunc">             WARN   </priority>
+  <priority msgstream="GLRES">                 WARN   </priority>
+  <priority msgstream="HadTransp">             INFO   </priority>
+  <priority msgstream="HadronicVtx">           NOTICE </priority>
+  <priority msgstream="HybridHad">             INFO   </priority>
+  <priority msgstream="IBD">                   NOTICE </priority>
+  <priority msgstream="IMDXSec">               NOTICE </priority>
+  <priority msgstream="IMDAnnihilation">       NOTICE </priority>
+  <priority msgstream="IntSel">                NOTICE </priority>
+  <priority msgstream="IntLst">                NOTICE </priority>
+  <priority msgstream="Interaction">           NOTICE </priority>
+  <priority msgstream="Intranuke">             NOTICE </priority>
+  <priority msgstream="Intranuke2018">         NOTICE </priority>
+  <priority msgstream="Intranuke2019">         NOTICE </priority>
+  <priority msgstream="HAIntranuke">           NOTICE </priority>
+  <priority msgstream="HAIntranuke2018">       NOTICE </priority>
+  <priority msgstream="HAIntranuke2019">       NOTICE </priority>
+  <priority msgstream="TwoBodyCollision">      NOTICE </priority>
+  <priority msgstream="HNIntranuke">           NOTICE </priority>
+  <priority msgstream="HNIntranuke2018">       NOTICE </priority>
+  <priority msgstream="HNIntranuke2019">       NOTICE </priority>
+  <priority msgstream="INukeData">             NOTICE </priority>
+  <priority msgstream="INukeData2018">         NOTICE </priority>
+  <priority msgstream="INukeData2019">         NOTICE </priority>
+  <priority msgstream="INukeUtils">            NOTICE </priority> <!-- notice-->
+  <priority msgstream="INukeUtils2018">        NOTICE </priority> <!-- notice-->
+  <priority msgstream="INukeUtils2019">        NOTICE </priority> <!-- notice-->
+  <priority msgstream="HINCLCascadeIntranuke"> NOTICE </priority>
+  <priority msgstream="HG4BertCascIntranuke">  NOTICE </priority>
+  <priority msgstream="INukeNucleonCorr">      NOTICE </priority>
+  <priority msgstream="ISApp">                 INFO   </priority>
+  <priority msgstream="IntGenMap">             WARN   </priority>
+  <priority msgstream="KNOHad">                NOTICE </priority>
+  <priority msgstream="KineLimits">            INFO   </priority>
+  <priority msgstream="Kinematics">            INFO   </priority>
+  <priority msgstream="MArunAxialFormFactorModel"> INFO </priority>
+  <priority msgstream="LeptonicVertex">        INFO   </priority>
+  <priority msgstream="LwlynSmith">            NOTICE </priority>
+  <priority msgstream="LocalFGM">              WARN   </priority>
+  <priority msgstream="Math">                  NOTICE </priority>
+  <priority msgstream="MEC">                   INFO   </priority>
+  <priority msgstream="MuELoss">               NOTICE </priority>
+  <priority msgstream="MultProb">              INFO   </priority>
+  <priority msgstream="Nieves">                NOTICE </priority>
+  <priority msgstream="NucDeEx">               NOTICE </priority>
+  <priority msgstream="NucleonDecay">          NOTICE </priority>
+  <priority msgstream="ResonanceDecay">        NOTICE </priority>
+  <priority msgstream="NucleonP">              INFO   </priority>
+  <priority msgstream="Nuclear">               NOTICE </priority>
+  <priority msgstream="Numerical">             INFO   </priority>
+  <priority msgstream="NuEXSec">               INFO   </priority>
+  <priority msgstream="Ntp">                   NOTICE </priority>
+  <priority msgstream="NuVld">                 INFO   </priority>
+  <priority msgstream="NuETargetRemnant">      INFO   </priority>
+  <priority msgstream="NuEKinematics">         INFO   </priority>
+  <priority msgstream="PartonModel">           INFO   </priority>
+  <priority msgstream="PauliBlock">            INFO   </priority>
+  <priority msgstream="ParticleDecayer">       INFO   </priority>
+  <priority msgstream="PaschLal">              INFO   </priority>
+  <priority msgstream="PythiaDec">             NOTICE </priority>
+  <priority msgstream="Pythia6Decay">          NOTICE </priority>
+  <priority msgstream="Pythia8Decay">          NOTICE </priority>
+  <priority msgstream="PythiaHad">             NOTICE </priority>
+  <priority msgstream="Pythia6Had">            NOTICE </priority>
+  <priority msgstream="Pythia8Had">            NOTICE </priority>
+  <priority msgstream="PDG">                   INFO   </priority>
+  <priority msgstream="PathL">                 NOTICE </priority>
+  <priority msgstream="PhysUtil">              NOTICE </priority>
+  <priority msgstream="QELXSec">               NOTICE </priority>
+  <priority msgstream="QELCharmXSec">          NOTICE </priority>
+  <priority msgstream="QELEvent">              INFO   </priority>
+  <priority msgstream="QELHadronicVtx">        INFO   </priority>
+  <priority msgstream="QELKinematics">         INFO   </priority>
+  <priority msgstream="SPPEventGen">           INFO   </priority>
+  <priority msgstream="RESXSec">               INFO   </priority>
+  <priority msgstream="RESPXSec">              WARN   </priority>
+  <priority msgstream="ReinSehgalCohPi">       WARN   </priority>
+  <priority msgstream="ReinDFR">               WARN   </priority>
+  <priority msgstream="ReinSehgalRes">         WARN   </priority>
+  <priority msgstream="ReinSehgalResT">        NOTICE </priority>
+  <priority msgstream="ReinSehgalResC">        NOTICE </priority>
+  <priority msgstream="ReinSehgalResTF">       NOTICE </priority>
+  <priority msgstream="ReinSehgalResCF">       NOTICE </priority>
+  <priority msgstream="ReinSehgalSpp">         NOTICE </priority>
+  <priority msgstream="RSHAmpl">               WARN   </priority>
+  <priority msgstream="Registry">              WARN   </priority>
+  <priority msgstream="ReW">                   DEBUG  </priority>
+  <priority msgstream="RESHadronicVtx">        INFO   </priority>
+  <priority msgstream="RESKinematics">         INFO   </priority>
+  <priority msgstream="RESSelector">           NOTICE </priority>
+  <priority msgstream="Rndm">                  NOTICE </priority>
+  <priority msgstream="Rosenbluth">            NOTICE </priority>
+  <priority msgstream="StrumiaVissani">        NOTICE </priority>
+  <priority msgstream="SpectralFunc1">         NOTICE </priority>
+  <priority msgstream="SpectralFunc">          NOTICE </priority>
+  <priority msgstream="Spline">                INFO   </priority>
+  <priority msgstream="Target">                INFO   </priority>
+  <priority msgstream="Utils">                 INFO   </priority>
+  <priority msgstream="Vtx">                   INFO   </priority>
+  <priority msgstream="VldContext">            NOTICE </priority>
+  <priority msgstream="VldTestInputs">         WARN   </priority>
+  <priority msgstream="XSecBase">              NOTICE </priority>
+  <priority msgstream="XSecAlgMap">            NOTICE </priority>
+  <priority msgstream="XSecSplLst">            NOTICE </priority>
+  <priority msgstream="GLRESPXSec">            WARN   </priority>
+  <priority msgstream="GLRESGenerator">        WARN   </priority>
+  <priority msgstream="HENuElPXSec">           WARN   </priority>
+  <priority msgstream="HENuElGenerator">       WARN   </priority>
+  <priority msgstream="PhotonRESPXSec">        WARN   </priority>
+  <priority msgstream="PhotonRESGenerator">    WARN   </priority>
+  <priority msgstream="PhotonCOHPXSec">        WARN   </priority>
+  <priority msgstream="PhotonCOHGenerator">    WARN   </priority>
+  <priority msgstream="HEDISXSec">             WARN   </priority>
+  <priority msgstream="HEDISPXSec">            WARN   </priority>
+  <priority msgstream="HEDISGenerator">        WARN   </priority>
+  <priority msgstream="HEDISKinematics">       WARN   </priority>
+  <priority msgstream="HEDISStrucFunc">        WARN   </priority>
+  <priority msgstream="LeptoHad">              ERROR  </priority>
+
+  <priority msgstream="gevgen">                NOTICE </priority>
+  <priority msgstream="gevgen_dm">             NOTICE </priority>
+  <priority msgstream="gevgen_ndcy">           NOTICE </priority>
+  <priority msgstream="gevgen_atmo">           NOTICE </priority>
+  <priority msgstream="gevgen_upmu">           NOTICE </priority>
+  <priority msgstream="gevgen_t2k">            NOTICE </priority>
+  <priority msgstream="gevgen_numi">           NOTICE </priority>
+  <priority msgstream="gevgen_hadron">         NOTICE </priority>
+  <priority msgstream="grwght1scan">           INFO   </priority>
+  <priority msgstream="gvldtest">              NOTICE </priority>
+  <priority msgstream="gtune">                 INFO   </priority>
+  <priority msgstream="gntpc">                 INFO   </priority>
+  <priority msgstream="gmkspl">                INFO   </priority>
+  <priority msgstream="gmkspl_dm">             INFO   </priority>
+  <priority msgstream="gcalchedisdiffxsec">    INFO   </priority>
+  <priority msgstream="gmkhedissf">            INFO   </priority>
+  <priority msgstream="gmkphotonsf">           INFO   </priority>
+
+</messenger_config>
diff --git a/shipgen/genie_config/Messenger_whisper.xml b/shipgen/genie_config/Messenger_whisper.xml
new file mode 100644
index 0000000000..7d9e295ed2
--- /dev/null
+++ b/shipgen/genie_config/Messenger_whisper.xml
@@ -0,0 +1,242 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<messenger_config>
+
+  <!--
+    Defines the priority levels for GENIE message streams
+
+    The priority (in descending importance order) can be
+    FATAL, ALERT, CRIT, ERROR, WARN, NOTICE, INFO, DEBUG
+
+    To change the default priority level for a message stream
+    or to add a default priority level for a new message stream
+    a) edit this file OR b) set the GMSGCONF env. var to point to
+    your custom messenger config file. More than one custom files
+    may defined in the GMSGCONF var delimited with a ':'. Example:
+    export GMSGCONF= /home/me/msgconf1.xml:/home/me/tmp/msgconf2.xml
+
+    These files are read in addition to the default priority levels
+    file and after it. The later each file is in the Messenger
+    configuration file chain the higher priority it has, eg. if the
+    same stream is listed twice with conflicting priority then the
+    one found last is used
+   -->
+
+  <priority msgstream="Messenger">             FATAL </priority>
+  <priority msgstream="AhrensNCEL">            FATAL </priority>
+  <!-- EDIT: add notification for DM EL algorithm -->
+  <priority msgstream="AhrensDMEL">            FATAL </priority>
+  <priority msgstream="AlgFactory">            FATAL </priority>
+  <priority msgstream="Algorithm">             FATAL </priority>
+  <priority msgstream="AlgConfigPool">         FATAL </priority>
+  <priority msgstream="AlvarezRusoCohPi">      FATAL </priority>
+  <priority msgstream="BergerSehgalCohPi">     FATAL </priority>
+  <priority msgstream="SKXSec">                FATAL </priority>
+  <priority msgstream="SKKinematics">          FATAL </priority>
+  <priority msgstream="SKLepton">              FATAL </priority>
+  <priority msgstream="SKHadron">              FATAL </priority>
+  <priority msgstream="BardinIMD">             FATAL </priority>
+  <priority msgstream="BaryonResList">         FATAL </priority>
+  <priority msgstream="BaryonResUtils">        FATAL </priority>
+  <priority msgstream="SppChannel">            FATAL </priority>
+  <priority msgstream="BaseHad">               FATAL </priority>
+  <priority msgstream="BertuzzoDNuCOH">        FATAL </priority>
+  <priority msgstream="BSKLNBaseRESPXSec2014"> FATAL </priority>
+  <priority msgstream="MKSPPPXSec2020">        FATAL </priority>
+  <priority msgstream="SPPXSec">               FATAL </priority>
+  <priority msgstream="SPPCache">              FATAL </priority>
+  <priority msgstream="BreitWignet">           FATAL </priority>
+  <priority msgstream="Bardin">                FATAL </priority>
+  <priority msgstream="BodekYang">             FATAL </priority>
+  <priority msgstream="BodekRitchie">          FATAL </priority>
+  <priority msgstream="SmithMoniz">            FATAL </priority>
+  <priority msgstream="SMQELXSec">             FATAL </priority>
+  <priority msgstream="Cache">                 FATAL </priority>
+  <priority msgstream="CharmHad">              FATAL </priority>
+  <priority msgstream="CFracTab">              FATAL </priority>
+  <priority msgstream="CEvNS">                 FATAL </priority>
+  <priority msgstream="COHDNu">                FATAL </priority>
+  <priority msgstream="COHDNuXSec">            FATAL </priority>
+  <priority msgstream="COHXSec">               FATAL </priority>
+  <priority msgstream="COHXSecAR">             FATAL </priority>
+  <priority msgstream="CLAP">                  FATAL </priority>
+  <priority msgstream="COHHadronicVtx">        FATAL </priority>
+  <priority msgstream="COHKinematics">         FATAL </priority>
+  <priority msgstream="DarkSectorDecayer">     FATAL </priority>
+  <priority msgstream="DFRHadronicVtx">        FATAL </priority>
+  <priority msgstream="DFRKinematics">         FATAL </priority>
+  <priority msgstream="Decay">                 FATAL </priority>
+  <priority msgstream="DISSF">                 FATAL </priority>
+  <priority msgstream="DISXSec">               FATAL </priority>
+  <priority msgstream="DISCharmXSec">          FATAL </priority>
+  <priority msgstream="DISPXSec">              FATAL </priority>
+  <priority msgstream="DISHadronicVtx">        FATAL </priority>
+  <priority msgstream="DISKinematics">         FATAL </priority>
+  <!-- EDIT: add notification for DM DIS processes -->
+  <priority msgstream="DMDISKinematics">       FATAL  </priority>
+  <priority msgstream="DMDISPXSec">            FATAL  </priority>
+  <priority msgstream="DMDISXSec">             FATAL  </priority>
+  <!-- EDIT: add notification for DM EL processes -->
+  <priority msgstream="DMELEvent">             NOTICE </priority>
+  <priority msgstream="DMELKinematics">        WARN   </priority>
+  <priority msgstream="DMELXSec">              NOTICE </priority>
+  <priority msgstream="EventGenerator">        FATAL </priority>
+  <priority msgstream="EffectiveSF">           FATAL </priority>
+  <priority msgstream="Elastic">               FATAL </priority>
+  <priority msgstream="EVGChain">              FATAL </priority>
+  <priority msgstream="EvGenListAssembler">    FATAL </priority>
+  <priority msgstream="ELFormFactors">         FATAL </priority>
+  <priority msgstream="EngelFormFactor">       FATAL </priority>
+  <priority msgstream="FermiMover">            FATAL </priority>
+  <priority msgstream="FermiP">                FATAL </priority>
+  <priority msgstream="Flux">                  FATAL </priority>
+  <priority msgstream="FMap">                  FATAL </priority>
+  <priority msgstream="FragmRecUtils">         FATAL </priority>
+  <priority msgstream="GEVGDriver">            FATAL </priority>
+  <priority msgstream="GMCJDriver">            FATAL </priority>
+  <priority msgstream="GEVGPool">              FATAL </priority>
+  <priority msgstream="GMCJob">                FATAL </priority>
+  <priority msgstream="GMCJMonitor">           FATAL </priority>
+  <priority msgstream="GROOTGeom">             FATAL </priority>
+  <priority msgstream="GHEP">                  FATAL </priority>
+  <priority msgstream="GHepParticle">          FATAL </priority>
+  <priority msgstream="GHepUtils">             FATAL </priority>
+  <priority msgstream="GuiUtils">              FATAL </priority>
+  <priority msgstream="GRV98LO">               FATAL </priority>
+  <priority msgstream="GXSecFunc">             FATAL </priority>
+  <priority msgstream="GLRES">                 FATAL </priority>
+  <priority msgstream="HadTransp">             FATAL </priority>
+  <priority msgstream="HadronicVtx">           FATAL </priority>
+  <priority msgstream="HybridHad">             FATAL </priority>
+  <priority msgstream="IBD">                   FATAL </priority>
+  <priority msgstream="IMDXSec">               FATAL </priority>
+  <priority msgstream="IMDAnnihilation">       FATAL </priority>
+  <priority msgstream="IntSel">                FATAL </priority>
+  <priority msgstream="IntLst">                FATAL </priority>
+  <priority msgstream="Interaction">           FATAL </priority>
+  <priority msgstream="Intranuke">             FATAL </priority>
+  <priority msgstream="Intranuke2018">         FATAL </priority>
+  <priority msgstream="Intranuke2019">         FATAL </priority>
+  <priority msgstream="HAIntranuke">           FATAL </priority>
+  <priority msgstream="HAIntranuke2018">       FATAL </priority>
+  <priority msgstream="HAIntranuke2019">       FATAL </priority>
+  <priority msgstream="TwoBodyCollision">      FATAL </priority>
+  <priority msgstream="HNIntranuke">           FATAL </priority>
+  <priority msgstream="HNIntranuke2018">       FATAL </priority>
+  <priority msgstream="HNIntranuke2019">       FATAL </priority>
+  <priority msgstream="INukeData">             FATAL </priority>
+  <priority msgstream="INukeData2018">         FATAL </priority>
+  <priority msgstream="INukeData2019">         FATAL </priority>
+  <priority msgstream="INukeUtils">            FATAL </priority>
+  <priority msgstream="INukeUtils2018">        FATAL </priority>
+  <priority msgstream="INukeUtils2019">        FATAL </priority>
+  <priority msgstream="HINCLCascadeIntranuke"> FATAL </priority>
+  <priority msgstream="HG4BertCascIntranuke">  FATAL </priority>
+  <priority msgstream="ISApp">                 FATAL </priority>
+  <priority msgstream="IntGenMap">             FATAL </priority>
+  <priority msgstream="KNOHad">                FATAL </priority>
+  <priority msgstream="KineLimits">            FATAL </priority>
+  <priority msgstream="Kinematics">            FATAL </priority>
+  <priority msgstream="MArunAxialFormFactorModel"> FATAL </priority>
+  <priority msgstream="LeptonicVertex">        FATAL </priority>
+  <priority msgstream="LwlynSmith">            FATAL </priority>
+  <priority msgstream="LocalFGM">              FATAL </priority>
+  <priority msgstream="Math">                  FATAL </priority>
+  <priority msgstream="MEC">                   FATAL </priority>
+  <priority msgstream="MuELoss">               FATAL </priority>
+  <priority msgstream="MultProb">              FATAL </priority>
+  <priority msgstream="Nieves">                FATAL </priority>
+  <priority msgstream="NucDeEx">               FATAL </priority>
+  <priority msgstream="NucleonDecay">          FATAL </priority>
+  <priority msgstream="ResonanceDecay">        FATAL </priority>
+  <priority msgstream="NucleonP">              FATAL </priority>
+  <priority msgstream="Nuclear">               FATAL </priority>
+  <priority msgstream="Numerical">             FATAL </priority>
+  <priority msgstream="NuEXSec">               FATAL </priority>
+  <priority msgstream="Ntp">                   FATAL </priority>
+  <priority msgstream="NuVld">                 FATAL </priority>
+  <priority msgstream="NuETargetRemnant">      FATAL </priority>
+  <priority msgstream="NuEKinematics">         FATAL </priority>
+  <priority msgstream="PartonModel">           FATAL </priority>
+  <priority msgstream="PauliBlock">            FATAL </priority>
+  <priority msgstream="ParticleDecayer">       FATAL </priority>
+  <priority msgstream="PaschLal">              FATAL </priority>
+  <priority msgstream="PythiaDec">             FATAL </priority>
+  <priority msgstream="Pythia6Decay">          FATAL </priority>
+  <priority msgstream="Pythia8Decay">          FATAL </priority>
+  <priority msgstream="PythiaHad">             FATAL </priority>
+  <priority msgstream="Pythia6Had">            FATAL </priority>
+  <priority msgstream="Pythia8Had">            FATAL </priority>
+  <priority msgstream="PDG">                   FATAL </priority>
+  <priority msgstream="PathL">                 FATAL </priority>
+  <priority msgstream="PhysUtil">              FATAL </priority>
+  <priority msgstream="QELXSec">               FATAL </priority>
+  <priority msgstream="QELCharmXSec">          FATAL </priority>
+  <priority msgstream="QELEvent">              FATAL </priority>
+  <priority msgstream="QELHadronicVtx">        FATAL </priority>
+  <priority msgstream="QELKinematics">         FATAL </priority>
+  <priority msgstream="SPPEventGen">           FATAL  </priority>
+  <priority msgstream="RESXSec">               FATAL </priority>
+  <priority msgstream="RESPXSec">              FATAL </priority>
+  <priority msgstream="ReinSehgalCohPi">       FATAL </priority>
+  <priority msgstream="ReinDFR">               FATAL </priority>
+  <priority msgstream="ReinSehgalRes">         FATAL </priority>
+  <priority msgstream="ReinSehgalResT">        FATAL </priority>
+  <priority msgstream="ReinSehgalResC">        FATAL </priority>
+  <priority msgstream="ReinSehgalResTF">       FATAL </priority>
+  <priority msgstream="ReinSehgalResCF">       FATAL </priority>
+  <priority msgstream="ReinSehgalSpp">         FATAL </priority>
+  <priority msgstream="RSHAmpl">               FATAL </priority>
+  <priority msgstream="Registry">              FATAL </priority>
+  <priority msgstream="ReW">                   FATAL </priority>
+  <priority msgstream="RESHadronicVtx">        FATAL </priority>
+  <priority msgstream="RESKinematics">         FATAL </priority>
+  <priority msgstream="RESSelector">           FATAL </priority>
+  <priority msgstream="Rndm">                  FATAL </priority>
+  <priority msgstream="Rosenbluth">            FATAL </priority>
+  <priority msgstream="StrumiaVissani">        FATAL </priority>
+  <priority msgstream="SpectralFunc1">         FATAL </priority>
+  <priority msgstream="SpectralFunc">          FATAL </priority>
+  <priority msgstream="Spline">                FATAL </priority>
+  <priority msgstream="Target">                FATAL </priority>
+  <priority msgstream="Utils">                 FATAL </priority>
+  <priority msgstream="Vtx">                   FATAL </priority>
+  <priority msgstream="VldContext">            FATAL </priority>
+  <priority msgstream="VldTestInputs">         FATAL </priority>
+  <priority msgstream="XSecBase">              FATAL </priority>
+  <priority msgstream="XSecAlgMap">            FATAL </priority>
+  <priority msgstream="XSecSplLst">            FATAL </priority>
+  <priority msgstream="GLRESPXSec">            FATAL </priority>
+  <priority msgstream="GLRESGenerator">        FATAL </priority>
+  <priority msgstream="HENuElPXSec">           FATAL </priority>
+  <priority msgstream="HENuElGenerator">       FATAL </priority>
+  <priority msgstream="PhotonRESPXSec">        FATAL </priority>
+  <priority msgstream="PhotonRESGenerator">    FATAL </priority>
+  <priority msgstream="PhotonCOHPXSec">        FATAL </priority>
+  <priority msgstream="PhotonCOHGenerator">    FATAL </priority>
+  <priority msgstream="HEDISXSec">             FATAL </priority>
+  <priority msgstream="HEDISPXSec">            FATAL </priority>
+  <priority msgstream="HEDISGenerator">        FATAL </priority>
+  <priority msgstream="HEDISKinematics">       FATAL </priority>
+  <priority msgstream="HEDISStrucFunc">        FATAL </priority>
+  <priority msgstream="LeptoHad">              FATAL </priority>
+
+  <priority msgstream="gevgen">              FATAL </priority>
+  <priority msgstream="gevgen_dm">           FATAL </priority>
+  <priority msgstream="gevgen_ndcy">         FATAL </priority>
+  <priority msgstream="gevgen_atmo">         FATAL </priority>
+  <priority msgstream="gevgen_upmu">         FATAL </priority>
+  <priority msgstream="gevgen_t2k">          FATAL </priority>
+  <priority msgstream="gevgen_numi">         FATAL </priority>
+  <priority msgstream="gevgen_hadron">       FATAL </priority>
+  <priority msgstream="grwght1scan">         FATAL </priority>
+  <priority msgstream="gvldtest">            FATAL </priority>
+  <priority msgstream="gtune">               FATAL </priority>
+  <priority msgstream="gntpc">               FATAL </priority>
+  <priority msgstream="gmkspl">              FATAL </priority>
+  <priority msgstream="gmkspl_dm">           FATAL </priority>
+  <priority msgstream="gcalchedisdiffxsec">  FATAL </priority>
+  <priority msgstream="gmkhedissf">          FATAL </priority>
+  <priority msgstream="gmkphotonsf">         FATAL </priority>
+
+</messenger_config>
diff --git a/shipgen/genie_config/README.md b/shipgen/genie_config/README.md
new file mode 100644
index 0000000000..0a122c7fc7
--- /dev/null
+++ b/shipgen/genie_config/README.md
@@ -0,0 +1,33 @@
+# Configuration files for GENIE simulations
+
+## Introduction
+
+Following ROOT's deprecation of TPythia6, these files replace the Pythia6Decayer
+with Pythia8Decayer in GENIE.
+
+## Details
+
+For more information, see:
+
+- https://genie-mc.github.io/releases.html
+- https://github.com/GENIE-MC/Generator/pull/430
+
+To use these files, set the `GXMLPATH` environment variable to this folder before
+launching the simulation. This is done automatically by `makeGenieEvents.py`.
+
+This folder mirrors the structure of the default GENIE configuration and currently
+only contains the files needed to switch from Pythia6Decayer to Pythia8Decayer.
+
+## History
+
+- February 2026: Initial creation (Antonio Iuliano)
+
+## Notes on particle decays
+
+Particle decays were previously configured in `UserPhysicsOptions.xml`. They are
+now provided in a "tune" folder. See for example:
+https://github.com/SND-LHC/sndsw/blob/master/shipgen/genie_config/SNDGHE19_00b/CommonDecay.xml
+
+GENIE no longer decays tau and charmed hadrons by default (this was the default
+in our old branch: https://github.com/ShipSoft/GENIE/blob/v2.12.6-ship2021/config/UserPhysicsOptions.xml),
+so we no longer need to override these settings.
diff --git a/shipgen/genie_config/UnstableParticleDecayer.xml b/shipgen/genie_config/UnstableParticleDecayer.xml
new file mode 100644
index 0000000000..08237bab1f
--- /dev/null
+++ b/shipgen/genie_config/UnstableParticleDecayer.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<alg_conf>
+
+<!--
+Configuration sets for the UnstableParticleDecayer EventRecordVisitorI
+
+Configurable Parameters:
+.......................................................................................................
+Name             Type     Optional   Comment               Default
+.......................................................................................................
+-->
+
+  <param_set name="BeforeHadronTransport">
+     <param type="int" name="NDecayers">  2                                                    </param>
+     <param type="alg" name="Decayer-0">  genie::Pythia8Decayer2023/BeforeHadronTransport      </param>
+     <param type="alg" name="Decayer-1">  genie::BaryonResonanceDecayer/BeforeHadronTransport  </param>
+  </param_set>
+
+  <param_set name="AfterHadronTransport">
+     <param type="int" name="NDecayers">  2                                                    </param>
+     <param type="alg" name="Decayer-0">  genie::Pythia8Decayer2023/AfterHadronTransport       </param>
+     <param type="alg" name="Decayer-1">  genie::BaryonResonanceDecayer/AfterHadronTransport   </param>
+  </param_set>
+
+  <param_set name="DarkSector">
+     <param type="int" name="NDecayers">  3                                                    </param>
+     <param type="alg" name="Decayer-0">  genie::Pythia8Decayer2023/AfterHadronTransport       </param>
+     <param type="alg" name="Decayer-1">  genie::BaryonResonanceDecayer/AfterHadronTransport   </param>
+     <param type="alg" name="Decayer-2">  genie::DarkSectorDecayer/Default </param>
+  </param_set>
+
+
+</alg_conf>