I prefer to flip the logic of the .gitignore.

# ignore root files/folders
/*

# unignore files
!.gitignore
!README.md
!Justfile
!flake.nix
!flake.lock
!pyproject.toml
!.python-version
!uv.lock

# unignore folders
!src/
!docs/

# reignore (recursively)
__pycache__

This includes the files and folders (and their subfiles/folders), while recursively ignoring any pycache bullshit.

• Small
• Maintainable
• Easy to change
• Readable