https://numtide.github.io/devshell/
https://github.com/numtide/devshell

https://numtide.github.io/devshell/extending.html

https://github.com/numtide/devshell/tree/main/docs
https://github.com/numtide/devshell/blob/main/docs/SUMMARY.md
https://github.com/numtide/devshell/blob/main/docs/intro.md
https://github.com/numtide/devshell/blob/main/docs/getting_started.md
https://github.com/numtide/devshell/blob/main/docs/env.md
https://github.com/numtide/devshell/blob/main/docs/ci.md
https://github.com/numtide/devshell/blob/main/docs/extending.md
https://github.com/numtide/devshell/blob/main/docs/default.nix
https://github.com/numtide/devshell/blob/main/docs/serve.sh
    https://github.com/ourway/webfsd

https://zero-to-flakes.com/mission-control/
https://github.com/Platonic-Systems/mission-control

https://cruel-intentions.github.io/devshell-files/
https://github.com/cruel-intentions/devshell-files

https://github.com/hercules-ci/devshell-example

2025
NixCon - You can't spell "devshell" without "hell" 0:00 of 45:08
    https://www.youtube.com/watch?v=Dwop0jb_SO4
    https://talks.nixcon.org/nixcon-2025/talk/MAEMPM/
    https://github.com/zmitchell/talks/blob/master/2025-09-06%20-%20nixcon%20zurich/presentation.pdf
2021
https://yuanwang.ca/posts/getting-started-with-flakes.html