chore: cleanup

- remove unused projects
- run all tests in CI, update GH actions, cache pnpm store

Author: patricktree

.github/actions/bootstrap-monorepo/action.yml

@@ -0,0 +1,59 @@
+name: 'bootstrap-monorepo'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Install Node.js
+      uses: actions/setup-node@v6
+      with:
+        node-version-file: '.nvmrc'
+
+    - name: Install and enable corepack
+      shell: bash
+      run: |
+        npm install -g corepack@0.34.5
+        pnpm --version
+
+    - name: Determine some values needed to cache the pnpm store
+      id: determine-values-for-pnpm-store-cache
+      shell: bash
+      run: |
+        # hash of store must include
+        # - the operating system (which is roughly represented by RUNNER_OS)
+        # - the CPU architecture (represented by RUNNER_ARCH)
+        # - the lockfile (which is represented by hashing pnpm-lock.yaml)
+        # - the Node.js version because of the side-effects cache of pnpm which caches compiled binaries (represented by hashing .nvmrc)
+        #
+        # actions/setup-node would have built-in caching logic for pnpm projects, but it does not
+        # consider CPU Arch and Node version, see
+        # - https://github.com/actions/setup-node/blob/c7a93deeacd27a63bee8be26a3bf77dc8fb6ce05/src/cache-restore.ts#L41-L42
+        # - https://github.com/actions/setup-node/issues/641
+        pnpm_store_cache_key=pnpm-store-cache-$RUNNER_OS-$RUNNER_ARCH-${{ hashFiles('.nvmrc') }}-${{ hashFiles('pnpm-lock.yaml') }}
+        pnpm_store_cache_key_fallback=pnpm-store-cache-$RUNNER_OS-$RUNNER_ARCH-${{ hashFiles('.nvmrc') }}-
+        pnpm_store_path=$(pnpm store path --silent)
+
+        mkdir -p "${pnpm_store_path}"
+
+        echo "pnpm-store-cache-key=$pnpm_store_cache_key" >> "$GITHUB_OUTPUT"
+        echo "pnpm-store-cache-key-fallback=$pnpm_store_cache_key_fallback" >> "$GITHUB_OUTPUT"
+        echo "pnpm-store-path=$pnpm_store_path" >> "$GITHUB_OUTPUT"
+
+    - name: Download cached pnpm store
+      uses: actions/cache/restore@v5
+      with:
+        key: ${{ steps.determine-values-for-pnpm-store-cache.outputs.pnpm-store-cache-key }}
+        path: ${{ steps.determine-values-for-pnpm-store-cache.outputs.pnpm-store-path }}
+        restore-keys: |
+          ${{ steps.determine-values-for-pnpm-store-cache.outputs.pnpm-store-cache-key-fallback }}
+
+    - name: Install dependencies
+      shell: bash
+      run: |
+        pnpm install --frozen-lockfile
+
+    - name: Upload new pnpm store to cache
+      if: ${{ github.ref_name == 'main' }}
+      uses: actions/cache/save@v5
+      with:
+        key: ${{ steps.determine-values-for-pnpm-store-cache.outputs.pnpm-store-cache-key }}
+        path: ${{ steps.determine-values-for-pnpm-store-cache.outputs.pnpm-store-path }}

.github/workflows/ci.yml

@@ -0,0 +1,39 @@
+name: '🔎 CI'
+
+# configure concurrency: cancel pending and in-progress workflow runs if a new commit to the same branch is pushed (`github.head_ref` is the source branch of PRs)
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
+# Remove default permissions of GITHUB_TOKEN for security
+# https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs
+permissions: {}
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types:
+      - opened # new PR was created
+      - synchronize # the last commit of the `head_ref` (= source branch) changed, e.g. a new commit was pushed or the source branch was rebased
+      - ready_for_review # the PR switched from draft to non-draft
+      - reopened # PR had been closed and got reopened
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Bootstrap monorepo
+        uses: ./.github/actions/bootstrap-monorepo
+
+      - name: Build
+        run: pnpm run build
+
+      - name: Run tests
+        run: pnpm run --recursive test

.github/workflows/test-pkg-consumption.yml

@@ -1,5 +1,6 @@
 #!/bin/sh
 . "$(dirname "$0")/_/husky.sh"
 
+pnpm exec prettier --ignore-unknown --check .
 pnpm exec superturbo build lint
 pnpm exec prettier --ignore-unknown --check .