Needed features:
- Ranges
- Timeouts
- Basic usage
- Default arguments to parse (--help, --version, -w, -c, -t)
- Packaging
	- Debian
	- Arch

Nice-to-have:
- Performance data
- Type annotations
- Verbosity levels

Little things:
- editorconfig

Could be done, but could do without
- Generator for Icinga config (we know the arguments and their defaults, so we can just dump that and help the user)