packages from external overlays not usable from flake packages

[casuallyblue]

I'm currently testing out snowfall on my nix configs and I'm running into the issue that packages from external overlays don't seem to get applied to the pkgs instance given to packages created in a flake. The overlays are added to the overlays attribute of snowfall-lib.mkFlake and the packages in them are not namespaced so it seems that they should appear but nix fails to evauluate due to the attribute missing. Its quite possible that I'm missing something about how to consume overlays with mkFlake though.

https://git.casuallyblue.dev/sierra/site/src/commit/7a7c9a4732eb2ce80b424aeb1b98e6bf1445cd88/flake.nix#L34
https://git.casuallyblue.dev/sierra/site/src/commit/7a7c9a4732eb2ce80b424aeb1b98e6bf1445cd88/packages/site-files/default.nix#L11

[jakehamilton]

Hey there!

From taking a look it seems like your resume flake has namespace = "sierra" set which will make the overlay put the packages at pkgs.sierra.*. Can you try accessing it from there instead?

https://git.casuallyblue.dev/sierra/resume/src/commit/e8f0fe4c816a4592d94cf38d052de925da607179/flake.nix#L17

[casuallyblue]

Currently both give the error 'Attribute {name} missing' where name is either sierra.resume or resume in this case

[DeadlySquad13]

Hey there!

From taking a look it seems like your resume flake has namespace = "sierra" set which will make the overlay put the packages at pkgs.sierra.*. Can you try accessing it from there instead?

https://git.casuallyblue.dev/sierra/resume/src/commit/e8f0fe4c816a4592d94cf38d052de925da607179/flake.nix#L17

Had the same error after creating custom package, thanks for advice - it helped!