**Improvements**
- Added macOS and Windows support
- Added pip installation mode
- Added offline installation mode (11) + uninstaller script (25)
- Added a new faster 'adding without execution' syntax
- Added environment issues detection and auto-fix ("f --setup")
- Added new commands ("--help", "--version", "--config")
- Improved unittest coverage (> 80%)
- Improved Github Action tests with OSs and Python version matrix
**Bug fixes**
- 10, 14, 21