I tried using PDM at my new work place and gave up. I had weird issues and since I had used poetry before, I switched to it. Poetry just works out of the box these days.

PEP 621 doesn't seem supported any more either

> This PEP is a historical document. The up-to-date, canonical spec, pyproject.toml specification, is maintained on the PyPA specs page.

I'd be fine if it supported it, but then PyPA should push to standardize on Poetry.