diff --git a/.github/workflows/clang-format.yml b/.github/workflows/clang-format.yml
index 033806c..0644f97 100644
--- a/.github/workflows/clang-format.yml
+++ b/.github/workflows/clang-format.yml
@@ -1,13 +1,13 @@
 name: clang-format-review
 
 # You can be more specific, but it currently only works on pull requests
-on: [pull_request]
+on: [push, pull_request]
 
 jobs:
   clang-format:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install clang-tidy
         run: |
           sudo apt-get update
diff --git a/.github/workflows/tetra-decoder-x86_64.yml b/.github/workflows/tetra-decoder-x86_64.yml
new file mode 100644
index 0000000..5ba8cc8
--- /dev/null
+++ b/.github/workflows/tetra-decoder-x86_64.yml
@@ -0,0 +1,14 @@
+
+name: "tetra-decoder-x86_64"
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: 'true'
+      - uses: cachix/install-nix-action@v17
+      - run: nix build -vL .\?submodules=1#