Try to use caching on github

.github/workflows/main.yml

@@ -13,6 +13,24 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      # used to cache dependencies with a timeout
+      - name: Get Date
+        id: get-date
+        run: |
+          echo "::set-output name=date::$(/bin/date -u "+%Y%m%d")"
+        shell: bash
+
+      - name: Cache Buildozer global directory
+        uses: actions/cache@v2
+        with:
+          path: .buildozer_global
+          key: buildozer-global-${{ hashFiles('src/buildozer.spec') }} # Replace with your path
+
+      - uses: actions/cache@v2
+        with:
+          path: .buildozer
+          key: ${{ runner.os }}-${{ steps.get-date.outputs.date }}-${{ hashFiles('src/buildozer.spec') }}
+
       - name: Checkout
         uses: actions/checkout@v2