Thought of this while posting this comment: #1591 (comment)

I added https://sqlite-utils.datasette.io/en/stable/cli-reference.html to sqlite-utils in simonw/sqlite-utils#383 and I really like it - it's a page showing the --help output of every CLI command for that tool.

It's maintained using cog. One of the benefits is that I get a free commit history of changes to --help at https://github.com/simonw/sqlite-utils/commits/main/docs/cli-reference.rst