Yeah, you’re right. I completely misread that and I’ve been barking up the wrong tree. I guess that makes this a nixpkgs-xr conversation rather than a flakes one. Thanks for pointing that out.

Ok, that seems odd to me. The error I get is:

       > Running phase: unpackPhase
       > unpacking source archive /nix/store/6a9kaz88xzhw8gd5v3wf3ifzd8ncxgr9-source
       > source root is source
       > Executing cargoSetupPostUnpackHook
       > Finished cargoSetupPostUnpackHook
       > Running phase: patchPhase
       > applying patch /nix/store/lnx0x0q7xl832j6p2klirgnkjqwfzi51-xrizer-fix-aarch64.patch
       > patching file fakexr/src/monado_xdev.rs
       > Hunk #1 FAILED at 3.
       > Hunk #2 FAILED at 111.
       > 2 out of 2 hunks FAILED -- saving rejects to file fakexr/src/monado_xdev.rs.rej

The commit that removes this patch and I believe would fix my issue is 696b10c. Shouldn’t commit 353988 include commit 696b10c?

My flake.lock is unchanged after running that command. https://pastebin.com/zbLKg742