Build

At build-time, Una itself does nothing. This is when hatch-una, the plugin for Hatch steps in and resolves the graph of dependencies.

Assuming your pyproject.toml is correctly configured, and your [tool.una.deps] section includes all necessary dependencies (and transitive dependencies!), then hatch-una will inject all the needed internal dependencies (other stuff in your monorepo) and external dependencies (stuff from PyPI) into your build.

So all you need to do is run something like:

uvx --from build pyproject-build --installer uv apps/printer

You'll get some *.whl files, which you can then deploy with Docker or whatever you prefer. They are fully self-contained, so you don't need uv/Hatch or Una or anything else wherever you want to install them.