Robert Hensing

Those are really good observations. "Subflake" suggests some sort of directional relationship other than just an input. We should avoid that term in the release notes, and/or explain what's not...

> At this point the `flake:root/subdir/src` and `flake:subdir/src` are locked to different revisions. I think I'm reading pseudo-syntax that's a little ambiguous, but I would think that the locking of...

> `path:..` Is your flake in a git repo? If not, that would explain the symptoms. IMO a flake should be self-contained unless a flake attribute specifies otherwise. Flakes that...

We have a few test cases [here](https://github.com/NixOS/nix/pull/10089/files#diff-48acfdb2d4eb8234e40590fa01e9af553a0a404bfe869ecbd0d4d0d4be9ce704) that suggest it should work, but maybe yours is more complicated than what we have? From what you describe I would think something...

This feature has not been implemented yet. A workaround for your use case is to perform all publish actions in a single effect, which may also be slightly more efficient,...

There's pretty much only one way to evaluate a flake, so it'd be a safe bet, but I understand that this may not be desirable. For instance, it'd be difficult...

> * `file-system.hh` functions are fine to continue to use `filesystem_error`, because they are a single implementation/interface (unlike `SourceAccessor` with multiple implementations). It is the users responsibility to make sure...

@Mic92 do you want to take another stab at this? Otherwise we could merge https://github.com/NixOS/nix/pull/11378 as an incremental fix despite the tech debt of having to fix it differently.

Note that it needs to be pure: only return the deriver field that's readily available, and don't query the store in the way `nix-store -q --deriver` does.

> PosixAccessor calls assertNoSymlinks too often? > ```python > error: path '/home/tom/.nix-defexpr/channels' is a symlink" thrown in the test body. > ``` This is probably the right behavior for a...