diff --git a/.config/yadm/bootstrap.d/brew.sh b/.config/yadm/bootstrap.d/brew.sh
index f25188a..aae652e 100644
--- a/.config/yadm/bootstrap.d/brew.sh
+++ b/.config/yadm/bootstrap.d/brew.sh
@@ -2,6 +2,11 @@
 #
 # Install Homebrew and packages
 
+if [ -n "${CI:-}" ]; then
+    debugw "Skipping due to \$CI"
+    return
+fi
+
 export PATH="/opt/homebrew/bin:/usr/local/bin:/home/linuxbrew/.linuxbrew/bin${PATH+:$PATH}"
 if ! has brew; then
     debug "Installing Homebrew"
@@ -10,9 +15,7 @@ fi
 
 debug "Installing Homebrew packages"
 export HOMEBREW_BUNDLE_FILE=~/.config/brew/Brewfile
-if [ -n "${CI:-}" ]; then
-    debugw "Skipping due to \$CI"
-elif ! has yadm || ! brew bundle check &>/dev/null; then
+if ! has yadm || ! brew bundle check &>/dev/null; then
     brew bundle install --no-lock
     ! has rustup || RUSTUP_HOME=~/.local/share/rustup rustup default stable
 fi
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 008c8e3..265b241 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -36,11 +36,16 @@ jobs:
 
   bootstrap:
     runs-on: ${{ matrix.os }}-latest
+    container: ${{ matrix.container }}
     strategy:
       fail-fast: false
       matrix:
-        os: [macos, ubuntu]
+        include:
+          - os: macos
+          - os: ubuntu
+          - os: ubuntu
+            container: alpine
     steps:
-      - run: curl -Lo /usr/local/bin/yadm https://github.com/TheLocehiliosan/yadm/raw/master/yadm
-      - run: chmod a+x /usr/local/bin/yadm
+      - run: apk add bash curl git
+        if: matrix.container == 'alpine'
       - run: curl -fsSL https://raw.githubusercontent.com/${{ github.repository }}/${{ github.sha }}/bootstrap | HOME=$PWD/tmp bash