For the first, this should definitely work. Could you just put together a tiny example and post it here or in a gist, and we'll take look?

Yes

Congratulations - you've uncovered a bit of a bug in the Environment API! The good news is that there is a legit workaround whilst we fix it. 🙂 If you use

invoke()

to get the value from the environment eg.

val value = keyLens(env)

instead of

env[keyLens]

, it will work as intended. TBH, the Map-like

get()/set()

behaviour isn't actually documented anywhere as we expect people to always use

invoke()

with lenses, but I'd like to get it working.

Ahhh thanks! Sorry for not giving the snippet, I’m trying to stay above water :x I promise one day I will contribute haha

Np. The fix has been released btw: 3.193.1