I found out about uv self upgrade which took me from 0.5 to 0.8, read the CHANGELOGs etc. and many neat things exist.

• Upgrading packages:
  • .. is confusing: Add option to upgrade all packages in the environment, e.g., upgrade --all · Issue #1419 · astral-sh/uv
  • change uv.lock only, not pyproject.toml
    • uv add -U pydantic one package
    • uv lock --upgrade all of them?
• Testing packages not yet on pypi/…:
  • uv build package you want to use
  • in the other project: uv add ../other/dist/package-2.4.0-py3-none-any.whl
  • when doen, just delete from pyproject lines like:

    [tool.uv.sources]
    coral-ucf = { path = "../other/dist/package-2.4.0-py3-none-any.whl" }
    

  • (see also: 250804-1444 Using a private gitlab repository with uv)