[ANN] Manifest2Nix.jl

Looks great. I see that you’re using julia-bin for the executable, which I agree seems to be the way to go, although I am still mystified why julia doesn’t build nicely on nix.

Do you know if there’s any way forward to have nice precompile hashing as part of the nix flake as well? It would be awesome to be able to run nix run mychannel#juliaflake and have it pull in the dependencies alongside the precompile targets so that everything runs quickly.
This avenue becomes even more interesting with the julia 1.12 apps. I think runic could be an interesting case study for this, how fast (TTFX) one can run a julia app on a fresh nix-available machine.