ci: switch over to using forgejo for ci/cd and hosting

.forgejo/workflows/build.yaml

@@ -0,0 +1,28 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  build:
+    # build it using teh base nixos system, helps with caching
+    runs-on: nix
+    steps:
+      # get the repo first
+      - uses: https://code.forgejo.org/actions/checkout@v4
+      - name: "Build it locally"
+        run: nix build --verbose
+
+  # deploy it upstream
+  deploy:
+    # runs on teh default docker container
+    runs-on: docker
+    needs: [ build ]
+    steps:
+      - name: "Deploy to Skynet"
+        uses: https://forgejo.skynet.ie/Skynet/actions-deploy-to-skynet@v2
+        with:
+          input: 'skynet_website_games'
+          token: ${{ secrets.API_TOKEN_FORGEJO }}

.gitlab-ci.yml

@@ -1,17 +0,0 @@
-# from https://docs.gitlab.com/ee/ci/pipelines/multi_project_pipelines.html
-
-# only a deploy stage
-stages:
-  - deploy
-
-
-nixos:
-  stage: deploy
-  variables:
-    PACKAGE_NAME: "skynet_website_games"
-    UPDATE_FLAKE: "yes"
-  trigger: compsoc1/skynet/nixos
-  only:
-    refs:
-      - main
-