Commit 97e8503846da3e3aeba907eb63832a0c29d34634
Parent: b148d98712fe0b520b7beb78466dbc3261ebf10b
Author: Matt Colligan <mcol@posteo.net>
Date: 2026-08-30 21:40:15 +0100
Committer: GitHub <noreply@github.com>
Committed: 2026-08-30 21:40:15 +0100

Drop macOS from CI matrix (#30)

Stack's resolver pins GHC 9.0.2, which fails to build on GitHub's
macOS-latest runners now that they're Apple Silicon (arm64) - the
isolated GHC Stack downloads can't find working LLVM tools there.
ubuntu-latest already covers the build/test/docs pipeline; dropping
macOS avoids a permanently red CI job rather than bumping the
resolver, which is a larger, riskier change.


Claude-Session: https://claude.ai/code/session_01UyGjWEMRv9qKWKmXJfgW7v

Co-authored-by: Claude <noreply@anthropic.com>

@@ -8,10 +8,7 @@
 
 jobs:
   ci:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macOS-latest]
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v4