diff --git a/boost.sh b/boost.sh
index 1bf17400..bc0967a1 100644
--- a/boost.sh
+++ b/boost.sh
@@ -1,6 +1,6 @@
 package: boost
 version: "%(tag_basename)s"
-tag: "v1.75.0"
+tag: "v1.83.0"
 source: https://github.com/alisw/boost.git
 requires:
   - "GCC-Toolchain:(?!osx)"
@@ -14,7 +14,7 @@ build_requires:
 prepend_path:
   ROOT_INCLUDE_PATH: "$BOOST_ROOT/include"
 prefer_system_check: |
- printf "#include \"boost/version.hpp\"\n# if (BOOST_VERSION < 106400)\n#error \"Cannot use system's boost. Boost > 1.64.00 required.\"\n#endif\nint main(){}" \
+ printf "#include \"boost/version.hpp\"\n# if (BOOST_VERSION < 107800)\n#error \"Cannot use system's boost. Boost > 1.78.00 required.\"\n#endif\nint main(){}" \
  | gcc -I$BOOST_ROOT/include -xc++ - -o /dev/null
 ---
 BOOST_PYTHON=
diff --git a/cetmodules.sh b/cetmodules.sh
new file mode 100644
index 00000000..3cba0827
--- /dev/null
+++ b/cetmodules.sh
@@ -0,0 +1,31 @@
+package: cetmodules
+version: "%(tag_basename)s"
+tag: 4.01.01
+source: https://github.com/FNALssi/cetmodules
+build_requires:
+  - CMake
+  - "GCC-Toolchain:(?!osx)"
+  - alibuild-recipe-tools
+---
+#!/bin/bash -e
+
+cmake -S "$SOURCEDIR" -B .                                        \
+      -DCMAKE_INSTALL_PREFIX="$INSTALLROOT"                       \
+      ${CMAKE_GENERATOR:+-G "$CMAKE_GENERATOR"}                   \
+      ${CMAKE_BUILD_TYPE:+-DCMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE}
+
+cmake --build . --target install ${JOBS:+-- -j$JOBS}
+
+# Patch config so find_package(cetmodules) also includes the modules
+# that cetmodules' own CMakeLists.txt loads when used via FetchContent.
+# All use include_guard() so double-inclusion is safe.
+cat >> "$INSTALLROOT/share/cetmodules/cmake/cetmodulesConfig.cmake" <<'EOF'
+include(CetProvideDependency)
+include(CetCMakeEnv)
+include(CetCMakeUtils)
+include(CetCMakeConfig)
+include(CetMake)
+EOF
+
+mkdir -p "$INSTALLROOT/etc/modulefiles"
+alibuild-generate-module --cmake > "$INSTALLROOT/etc/modulefiles/$PKGNAME"
diff --git a/defaults-phlex.sh b/defaults-phlex.sh
new file mode 100644
index 00000000..ae3c1f63
--- /dev/null
+++ b/defaults-phlex.sh
@@ -0,0 +1,8 @@
+package: defaults-phlex
+version: v1
+env:
+  CXXFLAGS: "-fPIC -g -O2 -std=c++23"
+  CFLAGS: "-fPIC -g -O2"
+  CMAKE_BUILD_TYPE: "RELEASE"
+  CMAKE_CXX_STANDARD: "23"
+---
diff --git a/fmt.sh b/fmt.sh
index 99b0c977..499cff39 100644
--- a/fmt.sh
+++ b/fmt.sh
@@ -16,7 +16,7 @@ prefer_system_check: |
     verge $REQUESTED_VERSION $FMT_VERSION
 ---
 #!/bin/bash -e
-cmake $SOURCEDIR -DCMAKE_INSTALL_PREFIX=$INSTALLROOT -DFMT_TEST=OFF
+cmake $SOURCEDIR -DCMAKE_INSTALL_PREFIX=$INSTALLROOT -DFMT_TEST=OFF -DBUILD_SHARED_LIBS=ON
 
 make ${JOBS+-j $JOBS}
 make install
@@ -37,5 +37,6 @@ module-whatis "ALICE Modulefile for $PKGNAME $PKGVERSION-@@PKGREVISION@$PKGHASH@
 module load BASE/1.0 ${GCC_TOOLCHAIN_REVISION:+GCC-Toolchain/$GCC_TOOLCHAIN_VERSION-$GCC_TOOLCHAIN_REVISION}
 # Our environment
 set FMT_ROOT \$::env(BASEDIR)/$PKGNAME/\$version
+prepend-path LD_LIBRARY_PATH \$FMT_ROOT/lib
 prepend-path ROOT_INCLUDE_PATH \$FMT_ROOT/include
 EoF
diff --git a/jsonnet.sh b/jsonnet.sh
new file mode 100644
index 00000000..8c896a64
--- /dev/null
+++ b/jsonnet.sh
@@ -0,0 +1,34 @@
+package: jsonnet
+version: "%(tag_basename)s"
+tag: v0.20.0
+source: https://github.com/google/jsonnet
+requires:
+  - "GCC-Toolchain:(?!osx)"
+  - nlohmann_json
+build_requires:
+  - CMake
+  - alibuild-recipe-tools
+---
+#!/bin/bash -e
+
+# jsonnet's USE_SYSTEM_JSON does find_package(nlohmann_json) but the source
+# includes "json.hpp" (bare), while the system package installs
+# "nlohmann/json.hpp".  Point the include path at the nlohmann/ subdirectory
+# so the bare include resolves.
+cmake "$SOURCEDIR" \
+  -DCMAKE_INSTALL_PREFIX="$INSTALLROOT" \
+  -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE" \
+  -DCMAKE_CXX_STANDARD="${CMAKE_CXX_STANDARD:-23}" \
+  -Dnlohmann_json_DIR="$NLOHMANN_JSON_ROOT/share/cmake/nlohmann_json" \
+  -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
+  -DBUILD_TESTS=OFF \
+  -DUSE_SYSTEM_JSON=ON \
+  -DBUILD_SHARED_BINARIES=ON \
+  -DCMAKE_CXX_FLAGS="${CXXFLAGS:+$CXXFLAGS }-I$NLOHMANN_JSON_ROOT/include/nlohmann"
+
+cmake --build . -- ${JOBS:+-j$JOBS} install
+
+MODULEDIR="$INSTALLROOT/etc/modulefiles"
+MODULEFILE="$MODULEDIR/$PKGNAME"
+mkdir -p "$MODULEDIR"
+alibuild-generate-module --bin --lib > "$MODULEFILE"
diff --git a/nlohmann_json.sh b/nlohmann_json.sh
new file mode 100644
index 00000000..b4075317
--- /dev/null
+++ b/nlohmann_json.sh
@@ -0,0 +1,33 @@
+package: nlohmann_json
+version: "%(tag_basename)s"
+tag: v3.11.3
+source: https://github.com/nlohmann/json.git
+prefer_system: .*
+prefer_system_check: |
+  #!/bin/bash -e
+  printf '#include <nlohmann/json.hpp>\nint main(){}\n' | \
+    c++ -std=c++20 -xc++ - \
+    ${NLOHMANN_JSON_ROOT:+-I"$NLOHMANN_JSON_ROOT/include"} \
+    -o /dev/null
+build_requires:
+  - "GCC-Toolchain:(?!osx)"
+  - CMake
+  - alibuild-recipe-tools
+---
+#!/bin/bash -e
+
+cmake "$SOURCEDIR" \
+  -DCMAKE_INSTALL_PREFIX="$INSTALLROOT" \
+  -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE" \
+  -DJSON_BuildTests=OFF
+cmake --build . -- ${JOBS:+-j$JOBS} install
+
+MODULEDIR="$INSTALLROOT/etc/modulefiles"
+MODULEFILE="$MODULEDIR/$PKGNAME"
+mkdir -p "$MODULEDIR"
+alibuild-generate-module > "$MODULEFILE"
+cat >> "$MODULEFILE" <<EoF
+# Our environment
+set NLOHMANN_JSON_ROOT \$::env(BASEDIR)/$PKGNAME/\$version
+prepend-path ROOT_INCLUDE_PATH \$NLOHMANN_JSON_ROOT/include
+EoF
diff --git a/phlex.sh b/phlex.sh
new file mode 100644
index 00000000..b54c13d3
--- /dev/null
+++ b/phlex.sh
@@ -0,0 +1,47 @@
+package: PHLEX
+version: "%(tag_basename)s"
+tag: v0.1.0
+source: https://github.com/Framework-R-D/phlex
+requires:
+  - "GCC-Toolchain:(?!osx)"
+  - boost
+  - fmt
+  - TBB
+  - spdlog
+  - jsonnet
+  - ROOT
+build_requires:
+  - CMake
+  - cetmodules
+  - alibuild-recipe-tools
+env:
+  PHLEX_ROOT: "$PHLEX_ROOT"
+  PHLEX_PLUGIN_PATH: "$PHLEX_ROOT/lib"
+prepend_path:
+  ROOT_INCLUDE_PATH: "$PHLEX_ROOT/include"
+  LD_LIBRARY_PATH: "$PHLEX_ROOT/lib"
+---
+#!/bin/bash -e
+
+cmake "$SOURCEDIR" \
+  -DCMAKE_INSTALL_PREFIX="$INSTALLROOT" \
+  -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE" \
+  -DCMAKE_CXX_STANDARD="${CMAKE_CXX_STANDARD:-23}" \
+  -DCMAKE_INSTALL_LIBDIR=lib \
+  -DCMAKE_PREFIX_PATH="$CETMODULES_ROOT" \
+  -DPHLEX_USE_FORM=ON \
+  -DBUILD_TESTING=OFF \
+  -DENABLE_CLANG_TIDY=OFF
+
+cmake --build . -- ${JOBS:+-j$JOBS} install
+
+MODULEDIR="$INSTALLROOT/etc/modulefiles"
+MODULEFILE="$MODULEDIR/$PKGNAME"
+mkdir -p "$MODULEDIR"
+alibuild-generate-module --bin --lib > "$MODULEFILE"
+cat >> "$MODULEFILE" <<EoF
+# Our environment
+set PHLEX_ROOT \$::env(BASEDIR)/$PKGNAME/\$version
+setenv PHLEX_PLUGIN_PATH \$PHLEX_ROOT/lib
+prepend-path ROOT_INCLUDE_PATH \$PHLEX_ROOT/include
+EoF
diff --git a/root.sh b/root.sh
index c226ae83..7dd13871 100644
--- a/root.sh
+++ b/root.sh
@@ -13,7 +13,6 @@ requires:
 - "OpenSSL:(?!osx)"
 - "osx-system-openssl:(osx.*)"
 - XRootD
-- pythia
 - TBB
 build_requires:
 - CMake
@@ -46,7 +45,7 @@ prefer_system_check: |
       echo "ROOT version $VERSION insufficient ($REQUESTED_VERSION requested)"
       exit 1
   fi
-  FEATURES="builtin_pcre mathmore xml ssl opengl http gdml pythia8 roofit soversion vdt xrootd"
+  FEATURES="builtin_pcre mathmore xml ssl opengl http gdml roofit soversion vdt xrootd"
   for FEATURE in $FEATURES; do
       root-config --has-$FEATURE | grep -q yes || { echo "$FEATURE missing"; exit 1; }
   done
@@ -139,8 +138,7 @@ module load BASE/1.0 ${GCC_TOOLCHAIN_VERSION:+GCC-Toolchain/$GCC_TOOLCHAIN_VERSI
                      ${XROOTD_VERSION:+XRootD/$XROOTD_VERSION-$XROOTD_REVISION}                                 \\
                      ${FREETYPE_VERSION:+FreeType/$FREETYPE_VERSION-$FREETYPE_REVISION}                         \\
                      ${PYTHON_VERSION:+Python/$PYTHON_VERSION-$PYTHON_REVISION}                                 \\
-                     ${PYTHON_MODULES_VERSION:+Python-modules/$PYTHON_MODULES_VERSION-$PYTHON_MODULES_REVISION} \\
-                     ${PYTHIA_VERSION:+pythia/$PYTHIA_VERSION-$PYTHIA_REVISION}
+                     ${PYTHON_MODULES_VERSION:+Python-modules/$PYTHON_MODULES_VERSION-$PYTHON_MODULES_REVISION}
 # Our environment
 setenv ROOT_RELEASE \$version
 setenv ROOT_BASEDIR \$::env(BASEDIR)/$PKGNAME
diff --git a/spdlog.sh b/spdlog.sh
new file mode 100644
index 00000000..30d995fe
--- /dev/null
+++ b/spdlog.sh
@@ -0,0 +1,37 @@
+package: spdlog
+version: "%(tag_basename)s"
+tag: v1.15.2
+source: https://github.com/gabime/spdlog
+requires:
+  - "GCC-Toolchain:(?!osx)"
+  - fmt
+build_requires:
+  - CMake
+  - alibuild-recipe-tools
+prepend_path:
+  ROOT_INCLUDE_PATH: "$SPDLOG_ROOT/include"
+---
+#!/bin/bash -e
+
+cmake "$SOURCEDIR" \
+  -DCMAKE_INSTALL_PREFIX="$INSTALLROOT" \
+  -DCMAKE_BUILD_TYPE="$CMAKE_BUILD_TYPE" \
+  -DCMAKE_PREFIX_PATH="$FMT_ROOT" \
+  -DSPDLOG_FMT_EXTERNAL=ON \
+  -DSPDLOG_BUILD_SHARED=ON \
+  -DSPDLOG_BUILD_EXAMPLE=OFF \
+  -DSPDLOG_BUILD_TESTS=OFF
+
+cmake --build . -- ${JOBS:+-j$JOBS} install
+
+MODULEDIR="$INSTALLROOT/etc/modulefiles"
+MODULEFILE="$MODULEDIR/$PKGNAME"
+mkdir -p "$MODULEDIR"
+alibuild-generate-module --lib > "$MODULEFILE"
+cat >> "$MODULEFILE" <<EoF
+# Our environment
+set SPDLOG_ROOT \$::env(BASEDIR)/$PKGNAME/\$version
+setenv SPDLOG_ROOT \$SPDLOG_ROOT
+prepend-path LD_LIBRARY_PATH \$SPDLOG_ROOT/lib
+prepend-path ROOT_INCLUDE_PATH \$SPDLOG_ROOT/include
+EoF