diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4580d90d..9f28a970 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,24 +2,49 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches: [ main ]
     paths:
-      - '**.lock'
       - '**.nix'
+      - 'flake.lock'
   pull_request:
     paths:
-      - '**.lock'
       - '**.nix'
+      - 'flake.lock'
   workflow_dispatch:
 
 jobs:
-  test:
+  packages:
+    name: Build Packages
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ macos-latest, macos-13, ubuntu-latest ]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+
+      - name: Setup cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
+
+      - name: Run build
+        run: |
+          nix run .#build-outputs -- 'packages'
+
+  modules:
     name: Test Modules
+    needs: packages
 
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, ubuntu-latest]
+        os: [ macos-latest, ubuntu-latest ]
 
     runs-on: ${{ matrix.os }}
 
@@ -35,8 +60,15 @@ jobs:
 
       - name: Run tests
         run: |
-          nix run \
-            --inputs-from . \
-            github:Mic92/nix-fast-build -- \
-            --no-nom \
-            --flake ".#checks.$(nix eval --raw --impure --expr builtins.currentSystem)"
+          nix run .#build-outputs -- 'checks'
+
+  release-gate:
+    name: Release Gate
+    needs: [ modules, packages ]
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Exit with error
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+        run: exit 1
diff --git a/.gitignore b/.gitignore
index b272df7c..591b2ba3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,4 @@
 result
 result-*
 repl-result-*
-
+gcroot/
diff --git a/flake.nix b/flake.nix
index 57ab41e0..749086db 100644
--- a/flake.nix
+++ b/flake.nix
@@ -84,6 +84,35 @@
         in
         {
           apps = {
+            build-outputs = {
+              type = "app";
+              program = lib.getExe (
+                pkgs.writeShellApplication {
+                  name = "build-outputs";
+
+                  runtimeInputs = [ pkgs.nix-fast-build ];
+
+                  text = ''
+                    usage="Usage: $0 <flake_attribute>"
+
+                    attribute="''${1:-}"
+                    if [ -z "$attribute" ]; then
+                      echo -n "$usage"
+                      exit 1
+                    fi
+
+                    args=(
+                      "--no-nom"
+                      "--skip-cached"
+                      "--flake" "${self.outPath}#$attribute.${system}"
+                    )
+
+                    nix-fast-build "''${args[@]}"
+                  '';
+                }
+              );
+            };
+
             serve = {
               type = "app";
               program = lib.getExe self.packages.${system}.site.serve;