Integrate v0.4

Author: Antonios Papadakis

.github/workflows/shellcheck.yml

@@ -6,9 +6,9 @@ jobs:
 
     steps:
       - name: Checkout code
-      - uses: actions/checkout@v1
+        uses: actions/checkout@v1
       - name: Run Shellcheck on Script Files
         uses: azohra/shell-linter@latest
         with:
-          path: "*.sh"
-          severity: "error"
+          path: "macos/install.sh,debian/install.sh"
+          severity: "error"