Build error with tailwindcss 4.x

[iMichka]

Hello

Homebrew maintainer here. We would like to rebuild oranda with tailwindcss 4.x
Here is the error:

==> cargo install
Last 15 lines from /Users/michkapopoff/Library/Logs/Homebrew/oranda/01.cargo:
    -o, --output ·········· Output file [default: `-`]
    -w, --watch ··········· Watch for changes and rebuild as needed
    -m, --minify ·········· Optimize and minify the output
        --optimize ········ Optimize the output without minifying
        --cwd ············· The current working directory [default: `.`]
    -h, --help ············ Display usage information

  --- stderr
  Error: Can't resolve 'variables.css' in '/private/tmp/oranda-20250202-52773-so86i6/oranda-0.6.5/oranda-css/css'
  thread 'main' panicked at generate-css/src/lib.rs:53:10:
  Tailwind failed to compile CSS!
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
error: failed to compile `oranda v0.6.5 (/private/tmp/oranda-20250202-52773-so86i6/oranda-0.6.5)`, intermediate artifacts can be found at `/private/tmp/oranda-20250202-52773-so86i6/oranda-0.6.5/target`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.

Can you have a look?