.github/workflows/flake-health-checks.yml

@@ -5,6 +5,9 @@ on:
     pull_request:
         branches: ["main"]
     merge_group:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
     health-check:
         name: "Perform Nix flake checks"

.github/workflows/flake-update.yml

@@ -4,6 +4,9 @@ on:
     workflow_dispatch:
     schedule:
         - cron: "00 12 * * *"
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
     update_lockfile:
         runs-on: ubuntu-latest

.github/workflows/lock-health-checks.yml

@@ -5,6 +5,9 @@ on:
     pull_request:
         branches: ["main"]
     merge_group:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
     health-check:
         name: "Check health of `flake.lock`"