sudo apt update sudo apt install qgis qgis-plugin-grass On macOS (Homebrew):
Let’s compare:
| Feature | Official QGIS | QGIS from Kuyhaa | | :--- | :--- | :--- | | | Free (GPL license) | Free (but illegal to repackage) | | Safety | 100% virus-free, signed certificates | Unknown – may contain malware, adware, or keyloggers | | Updates | Built-in updater / official website | No updates; stuck on old version | | Plugins | Full access to official plugin repository | Often broken due to modified config files | | Support | Huge community (GIS StackExchange, Reddit) | No support | qgis kuyhaa free
