Michael Peyton Jones

I can't reproduce this any more! I accidentally wiped out my change to not set `PATH_DIRS` and I didn't even notice! So I really have not idea what's going on....

Yep, that fixes it for me. Things now work as I expect when running `bash -c`. Running it in an actual bash terminal still has slightly odd behaviour - I...

Yes - on closer inspection that's also what I'm seeing, it's just that in this case I don't actually mind! It looks like the command substitution evaluates to an empty...

:+1:

Some personal feelings: - discovery - I don't care much about this. Having to use `niv` in the top-level project directory is not much of a cost to me, since...

I still think the approach I suggested in https://github.com/nmattia/niv/pull/137 was nice for this kind of customization. You feed `sources.nix` an overlay when you import it and you can use that...

Yes, you're quite right, it only handled fetching! At the moment I think all the updating is done by the Haskell code, which makes it a bit harder to extend...

Also, to be clear, that was just a suggestion, it's not actually implemented in niv.

Does following the `nixos-20.03` branch not achieve this already?

`nixpkgs-channels` is deprecated, the channel branches from there are now just branches in the main `nixpkgs` repo. The command you give has the same output as the one @lheckemann posted...