Would you care to offer some comments about their shortcomings? I'm a command-line toolings creator and are not familiar with your criticism.

I am using clap [1] for my rust projects, and I am using kong [2] for my golang projects. Both offer seemingly endless extensibility in order to handle every imaginable use-case.

1: https://docs.rs/clap/latest/clap/

2: https://github.com/alecthomas/kong?tab=readme-ov-file#introd...