diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
new file mode 100644
index 0000000..9454427
--- /dev/null
+++ b/.github/workflows/build.yaml
@@ -0,0 +1,9 @@
+on:
+  - push
+jobs:
+  build-all:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v24
+      - run: nix run nixpkgs#just build-all
diff --git a/justfile b/justfile
index 4306276..79357d6 100644
--- a/justfile
+++ b/justfile
@@ -25,5 +25,10 @@ update-inputs:
       echo $(cd $(dirname $i) && nix flake update)
     done
 
+build-all:
+    nix build .#blinky -L --show-trace
+    nix build .#chisel-blinky -L --show-trace
+    nix build .#chisel-practice -L --show-trace
+
 addlicense:
     @find . -type f \( -name "*.cpp" -o -name "*.hpp" -o -name "*.cc" -o -name "*.h" \) -exec addlicense -f LICENSE -l mit {} \;
diff --git a/projects/chisel-practice/default.nix b/projects/chisel-practice/default.nix
index 95f950b..d126ebe 100644
--- a/projects/chisel-practice/default.nix
+++ b/projects/chisel-practice/default.nix
@@ -36,9 +36,10 @@ mkSbtDerivation {
     runHook postBuild
   '';
 
-  depsSha256 = "sha256-jeLxdCXKVIrWjLtXGyu80halnMckL92AR9BumR2Lsew=";
+  depsSha256 = "sha256-g1aqoVPugEIxSrmw7S0+MM6TnD4O0IzdFZiRpmQCHQI=";
 
   installPhase = ''
-    install -Dm 444 -T blinky.fs $out/share/blinky.fs
+    mkdir -p $out/share
+    install -Dm 444 *.fs -t $out/share
   '';
 }
diff --git a/projects/default.nix b/projects/default.nix
index 694787b..1b0077b 100644
--- a/projects/default.nix
+++ b/projects/default.nix
@@ -4,5 +4,6 @@
     blinky = pkgs.callPackage ./blinky { };
     blinkygen-chisel = pkgs.callPackage ./chisel-blinky { };
     chisel-blinky = pkgs.callPackage ./chisel-blinky { };
+    chisel-practice = pkgs.callPackage ./chisel-practice { };
   };
 }