I've been using conda+poetry as my goto combo for years now and it's served me very well. Sure it's said poetry doesn't follow certain standards, but it just abstracts away so much that I don't see myself needing anything else really. If I want to share a non-poetry artifact, it's a simple `poetry build` to create a wheel.
I did come across a weird dependency confusion issue recently when I tried using it on a server setup with piku though, but haven't gotten around to find what exactly is happening.
Also don't think I'll ever give up on YAML for it's easy read+write, and I love the simplicity of fire for CLI things. And pathlib.Path().glob() for directory listing.