Error compiling with NixOS flake

[mateodd25]

I am trying to install matugen using flake.nix. I followed the instructions in the readme and got the following error:

error: builder for '/nix/store/i5g10yffkx7afalsg0dwkblr4xbnqrld-matugen-2.2.0.drv' failed with exit code 101;
       last 20 log lines:
       >   |
       > 1 | pub use core::CorePalette;
       >   |         ^^^^ ambiguous name
       >   |
       >   = note: ambiguous because of multiple potential import sources
       >   = note: `core` could refer to a built-in crate
       >   = help: use `::core` to refer to this crate unambiguously
       > note: `core` could also refer to the module defined here
       >  --> /build/cargo-vendor-dir/material-colors-0.3.1/src/palette/mod.rs:4:1
       >   |
       > 4 | mod core;
       >   | ^^^^^^^^^
       >   = help: use `self::core` to refer to this module unambiguously
       >
       >    Compiling paris-log v1.0.2
       >    Compiling clap v4.4.11
       >    Compiling resolve-path v0.1.0
       > For more information about this error, try `rustc --explain E0659`.
       > error: could not compile `material-colors` (lib) due to previous error

[cenunix]

hey @mateodd25 as a temporary workaround you can do this:

matugen.url = "github:InioX/matugen?ref=v2.2.0";

To pin your flake url to the 2.2.0 release