diff --git a/.github/workflows/shared_build_release_am_extension.yml b/.github/workflows/shared_build_release_am_extension.yml
index 7e797c9..3eae463 100644
--- a/.github/workflows/shared_build_release_am_extension.yml
+++ b/.github/workflows/shared_build_release_am_extension.yml
@@ -19,25 +19,20 @@ on:
         description: "The MetaMod Repository branch to compile the extension against"
         default: "1.12-dev"
         type: string
+      os-list:
+        description: 'JSON array of runner labels to build on (e.g. ["ubuntu-24.04", "windows-2022"])'
+        default: '["ubuntu-24.04", "windows-2022"]'
+        type: string
 
 jobs:
   build:
     strategy:
       fail-fast: false
       matrix:
-        os:
-          - ubuntu-24.04
-          - windows-2022
+        os: ${{ fromJSON(inputs.os-list) }}
         sm-branch:
           - master
           - 1.12-dev
-        include:
-          - os: ubuntu-24.04
-            cc: clang-14
-            cxx: clang++-14
-          - os: windows-2022
-            cc: msvc
-            cxx: msvc
 
     name: ${{ matrix.os }} (SM ${{ matrix.sm-branch }})
     runs-on: ${{ matrix.os }}
@@ -57,8 +52,8 @@ jobs:
         id: ambuild
         with:
           os: ${{ matrix.os }}
-          cc: ${{ matrix.cc }}
-          cxx: ${{ matrix.cxx }}
+          cc: ${{ startsWith(matrix.os, 'windows') && 'msvc' || 'clang-14' }}
+          cxx: ${{ startsWith(matrix.os, 'windows') && 'msvc' || 'clang++-14' }}
           ambuild-ref: 'master'
           mm-ref: ${{ inputs.mm-branch }}
           sm-ref: ${{ matrix.sm-branch }}