Feature request: Am I in a shell? a nested shell?

[robrich]

Add a discover-inception command. e.g. devbox which or devbox whereami outputs if I'm in a shell, and if that's in a shell and if that's in a shell recursively. Perhaps add a -v that outputs the packages / env vars defined in that shell at each level. If you're not in a shell it notes that too.

[loreto]

We prohibited "shell-inception" in the 0.0.3 release.
We're planning to implement #25

Do you still feel we should have a which or whereami command once we've done those two things?