Discussed by @llimeht here: https://github.com/orgs/SasView/discussions/3161

Prototype here: https://github.com/llimeht/bumps/tree/tmp/docs-source

Please comment before Stuart puts too much effort making it work for bumps.

We have already converted to pyproject.toml. Since any additional benefit seems marginal I would wait to see if hatchling catches on before committing. There are at least a dozen different build systems that can be driven from pyproject.toml. Here's current trends for four of them (hatchling, setuptools, flit-core, poetry-core):

https://piptrends.com/compare/hatchling-vs-setuptools-vs-flit-core-vs-poetry-core