devshell environments on generated flakes from nix-versions.

[vic]

Hi,

Thank you for creating devshell, I've been using it happily for my development environments and using it for evangelizing nix to colleagues.

Recently I made a tool for me (nix-versions) that lets you search for existing versions of packages. It uses the Lazamar index and NixHub, as well as search.nixos.org.

Anyways, the reason I'm writing here is because the webserver that hosts documentation for this tool, also provides a flake generator endpoint that provides numtide/devshells by default. Allowing people to easily do get one-shot shells for specific version packages with a command line. The following demo is featured on the home page.