This repository uses a docker GitHub action to build a simple python project PKGBUILD in a minimal system and then run namcap.
See the most recent run on the actions tab for more details.
Expanding Test > pkgbuild > Makepkg build and check shows the output log of entrypoint.sh run on a docker container, including lists of installed packages at various times.
Relevant namcap output:
helloworld W: Referenced library 'python' is an uninstalled dependency
helloworld I: Script link detected (python) in file ['usr/bin/helloworld']
helloworld W: Dependency included and not needed ('python')
helloworld I: Depends as namcap sees them: depends=()