fixing warning, adding CIs

.gitea/workflows/linux.yml

@@ -0,0 +1,34 @@
+name: Linux
+
+on:
+  repository_dispatch:
+    types: [create-pull-request]
+  pull_request:
+  push:
+    paths-ignore:
+      - '.gitignore'
+      - 'LICENSE'
+      - 'README.md'
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        arch: [x86_64]
+
+    runs-on: ${{ matrix.os }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v6
+
+    - name: Install system dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get -y install mesa-common-dev clang libsdl2-2.0-0 libsdl2-dev build-essential libvulkan-dev
+
+    - name: Build
+      run: cd sandbox && make