koa dependency keyGrip stale since 2019
[koa introduction](https://koajs.com/#introduction) docs lists [keyGrip](https://github.com/crypto-utils/keygrip) dependency for use in setting `app.keys = ...`

however keyGrip hasnt received updates since 2019

is anyone using this functionality, and if so, how are you working around this stale dependency?

to be fair: the keygrip package code is relatively small (yet impactful). its own dependencies are nodes crypto (which would depend on your env and not packaged with keygrip) and more importantly the [tsscmp](https://github.com/suryagh/tsscmp) package.

the tsscmp hasnt been updated since apr 2020.