Write a flake

https://github.com/NixOS/nixpkgs/archive/ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b.tar.gz

release-22.11 is as above

TODO: find nixos-22.11

or:

1. extract the package.nix and go from there
2. uv can be involved
3. uv also may not compile an old version of python from scratch

re 3:

a) don't ask people to do your work for you. b) there are other toolkits which do this

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Also https://github.com/onet-team/grab-site/commit/0eaf88628f4d8ef5af4df4c13f594606a41de3cd