1st try of a build workflow

.gitea/workflows/build.yaml

@@ -0,0 +1,17 @@
+name: Build
+run-name: ${{ gitea.actor }} is building 
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest-slim
+    steps:
+      - name: Check out repository
+        uses: actions:checkout@v4
+      - run: wget http://localhost:8081/repository/ziglang.org/download/0.14.1/zig-x86_64-linux-0.14.1.tar.xz
+      - run: tar xfv zig-x86_64-linux-0.14.1.tar.xz
+      - run: mv zig-x86_64-linux-0.14.1/zig .zig
+      - run: ./zig build
+      - run: ./zig build-exe src/main.zig -O ReleaseSmall -fstrip -fsingle-threaded -target x86_64-windows
+
+