From 525b165e19845da1483ed6ff7ffaf950d540e426 Mon Sep 17 00:00:00 2001
From: schillic <git@christianschilling.net>
Date: Mon, 16 Feb 2026 22:38:31 +0100
Subject: [PATCH 1/3] use ubuntu-slim in CI

---
 .github/workflows/CompatHelper.yml        | 2 +-
 .github/workflows/doc-preview-cleanup.yml | 2 +-
 .github/workflows/format.yml              | 2 +-
 .github/workflows/invalidations.yml       | 2 +-
 .github/workflows/spell-check.yml         | 2 +-
 .github/workflows/test-pull-request.yml   | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/CompatHelper.yml b/.github/workflows/CompatHelper.yml
index 6ec57028..420c2ced 100644
--- a/.github/workflows/CompatHelper.yml
+++ b/.github/workflows/CompatHelper.yml
@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
 jobs:
   CompatHelper:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Check if Julia is already available
         id: julia_in_path
diff --git a/.github/workflows/doc-preview-cleanup.yml b/.github/workflows/doc-preview-cleanup.yml
index f0863bcb..d7ca2b6f 100644
--- a/.github/workflows/doc-preview-cleanup.yml
+++ b/.github/workflows/doc-preview-cleanup.yml
@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
 jobs:
   doc-preview-cleanup:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Checkout gh-pages branch
         uses: actions/checkout@v6
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 9edb84f1..12f60850 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
 jobs:
   format:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Check out repository
         uses: actions/checkout@v6
diff --git a/.github/workflows/invalidations.yml b/.github/workflows/invalidations.yml
index b773cffd..fe127a45 100644
--- a/.github/workflows/invalidations.yml
+++ b/.github/workflows/invalidations.yml
@@ -12,7 +12,7 @@ concurrency:
   cancel-in-progress: true
 jobs:
   evaluate:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: "!contains(github.event.head_commit.message, 'skip ci')"
     env:
       JULIA_PKG_SERVER: ''
diff --git a/.github/workflows/spell-check.yml b/.github/workflows/spell-check.yml
index 6488eff4..bc01c9db 100644
--- a/.github/workflows/spell-check.yml
+++ b/.github/workflows/spell-check.yml
@@ -9,7 +9,7 @@ concurrency:
   cancel-in-progress: true
 jobs:
   spell-check:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: "!contains(github.event.head_commit.message, 'skip ci')"
     steps:
       - name: Check out repository
diff --git a/.github/workflows/test-pull-request.yml b/.github/workflows/test-pull-request.yml
index 6cf8240a..75b6596c 100644
--- a/.github/workflows/test-pull-request.yml
+++ b/.github/workflows/test-pull-request.yml
@@ -28,7 +28,7 @@ jobs:
         include:
           - version: '1.6'  # test on oldest supported version
             arch: x64
-            os: ubuntu-latest
+            os: ubuntu-slim
     env:
       JULIA_PKG_SERVER: ''
     steps:

From c2fa9e1b2fb04f99a2a5aad4b7a292416a0fe7c7 Mon Sep 17 00:00:00 2001
From: schillic <git@christianschilling.net>
Date: Sun, 22 Feb 2026 21:57:25 +0100
Subject: [PATCH 2/3] use v1.12.4 in CI

---
 .github/workflows/documentation.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 97440f62..ffb8993e 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Set up Julia
         uses: julia-actions/setup-julia@v2
         with:
-          version: '1'
+          version: '1.12.4'  # parser broken on 1.12.5
       - name: Check out repository
         uses: actions/checkout@v6
       - name: Cache artifacts

From 02326272d79c2e35fa6d446a21b0eb21643d2475 Mon Sep 17 00:00:00 2001
From: schillic <git@christianschilling.net>
Date: Sun, 22 Feb 2026 22:03:01 +0100
Subject: [PATCH 3/3] fix formatting script

---
 .github/workflows/format.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 12f60850..1c12b660 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -10,6 +10,8 @@ jobs:
     steps:
       - name: Check out repository
         uses: actions/checkout@v6
+      - name: Set up Julia
+        uses: julia-actions/setup-julia@v2
       - name: Cache artifacts
         uses: julia-actions/cache@v2
       - name: Install JuliaFormatter and format