Save common flags (section, etc.) to a little cache file

[benjamin051000]

This way you won't need to retype in the flags so often.

Save flags to a file that is automatically read when the argparser starts.

Of course, they should be overridden if new flags are supplied.

[benjamin051000]

Hm... another simple solution would be a config file which you could just pass a --config-file <path> and may honestly be better... idk