mattmcal

Technical explainer:
https://github.com/RupertBenWiser/Web-Environment-Integrity/blob/main/explainer.md#how-it-works

It apparently requires some kind of proprietary operating environment to function, thus making it compatible with free (as in freedom) computing. You would need either a proprietary library/OS or an open OS but a proprietary piece of vendor hardware to act as the attester.

In my experience, numerous people who love tackling hard problems for the sake of it go on to work at soulless corps. That’s part of their success.