Actually useful CI config added

.forgejo/workflows/build.yml

@@ -0,0 +1,17 @@
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      steps:
+        - uses: actions/checkout@v4
+        - uses: actions/setup-go@v5
+          with:
+            go-version-file: 'go.mod'
+            check-latest: true
+            cache-dependency-path: "**/*.sum"
+        - run: go build
+        - uses: actions/upload-artifact@v3
+          with:
+            name: fj
+            path: fj

.forgejo/workflows/demo.yml

@@ -1,7 +0,0 @@
-on: [push]
-jobs:
-  test:
-    runs-on: alpine-latest
-    steps:
-      - shell: sh
-        run: echo using sh here