diff --git a/.github/actions/setup-common/action.yml b/.github/actions/setup-common/action.yml
index eff43909f2..f7074a0bb7 100644
--- a/.github/actions/setup-common/action.yml
+++ b/.github/actions/setup-common/action.yml
@@ -11,7 +11,7 @@ inputs:
     description: 'Can take the values: OFF, LOCAL, SYSTEM'
     default: 'OFF'
   oldest-cmake:
-    description: 'Can take the values: true, false. Only useful on Linux'
+    description: 'Can take the values: true, false. Only useful on Linux to force using the minimum required CMake'
     default: 'false'
 runs:
   using: "composite"
diff --git a/.github/workflows/ci-unix-shared-installed.yml b/.github/workflows/ci-unix-shared-installed.yml
index 4437839982..5597c23a08 100644
--- a/.github/workflows/ci-unix-shared-installed.yml
+++ b/.github/workflows/ci-unix-shared-installed.yml
@@ -16,14 +16,19 @@ jobs:
   build-shared-installed:
     strategy:
       fail-fast: false
+      # Generate the configurations:
+      # Ubuntu with gcc 14 with oldest-cmake set to true or false
+      # OSX with default gcc and CMake (oldest-cmake is unused on OSX)
       matrix:
         os: [ubuntu-24.04, macos-latest]
         oldest-cmake: [false, true]
         include:
+          # Add a gcc version on Ubuntu only
           - os: ubuntu-24.04
             compiler: gcc
             gcc: 14
         exclude:
+          # Do not use the oldest CMake on OSX
           - os: macos-latest
             oldest-cmake: true
     runs-on: ${{ matrix.os }}