Uv doesn't include a "build system", but encourages you to use some other one. Personally I consider this one of uv's greatest strengths. The inflexibility and

Uv doesn't include a "build system", but encourages you to use some other one. Personally I consider this one of uv's greatest strengths. The inflexibility and brittleness of Poetry's build system is what made me give up on poetry entirely. Had poetry made it easy to plug in a different build system I might never have tried uv.