flake: add devenv packages to flake outputs

[jurraca]

per https://devenv.sh/guides/using-with-flakes/#the-flakenix-file
This allows devenv to work with nix develop --no-pure-eval. I see you went down the road of modifying the devenv root but this works for me, i can devenv up and the processes start.

This seems to throw an InvalidTaskName for create-logs-dir but the directory seems to be created anyway, and logs are written there, so idk about that.

My main question would be why make this a flake at all? Devenv is for specifying dev environments so idk what flakes give you here, apart from having nix users be ready to roll.

[vnprc]

My goal was to enable a workflow to update and pin the bitcoind version. It's on a fork that gets frequently rebased and it seems to be broken every time I install on a new machine.

I don't think I need devenv inside nix develop that was a misunderstanding on my part.

[vnprc]

Thanks for the help @jurraca! I am not going to merge this change because I have realized that I don't need nix flakes so I have deleted the flake.nix file.

If my LLM is to be believed, I can't pin the version of a bitcoind fork, which is why bitcoind.nix exists with a manually pinned commit hash. Instead of converting to a flake, I created a just recipe to more easily manually update this hard coded commit hash.

Does that sound right?

[jurraca]

sure that would work. You could do this with a flake but you'd still have to update the bitcoind commit hash anyway, so it's an equivalent workflow.