hydrus: no module named "pillow_jxl"

Nixpkgs version

• Unstable (26.05)

Describe the bug

When launching Hydrus the error shows without any additional changes.

Steps to reproduce

Try to use Hydrus

Expected behaviour

Error does not appear/JXL support is enabled

Screenshots

Relevant log output

Additional context

No response

System metadata

• system: "x86_64-linux"
• host os: Linux 6.12.61, NixOS, 26.05 (Yarara), 26.05.20260102.fb7944c
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.31.2+2
• channels(root): "home-manager-24.05.tar.gz, nixos-24.05"
• nixpkgs: /nix/store/as8ksm9hafq3x3cvml95i5s092903kvk-source

Notify maintainers

@D4ndellion
@evanjs
@KunyaKud

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Start by locating the Hydrus package definition in nixpkgs and inspect how its Python dependencies are declared. Reproduce the launch failure and check whether pillow_jxl is available to the package; done means Hydrus launches without the missing-module error and JXL support is enabled.