I have the following project structure: root - sample/ - src/ - tests/ - pyproject.toml - libs/ - lol/ - src/ - tests/ - pyproject.toml I'd like to specify lol as a dependency for sample in sample/pyproject.toml. How it can be done? I've tried: dependencies = [ "lol @ file://libs/lol" ] But it gives me: ValueError: non-local file URIs are not supported on this platform: 'file://libs/lol' and that's ok however I cannot put absolute path here since this is going to be shared code. Same for file://./lib/lol. What can be done about that? Can I use env variables here, or some placeholders? I don't want to use tools like poetry. Continue reading...