nixos/ly: Not possibe to define custom commands or labels

Nixpkgs version

• Unstable (26.11)

Describe the bug

In ly config file, custom commands and labels are configured as separate ini sections.

https://github.com/fairyglade/ly/blob/master/res/config.ini#L417

Unless I'm misunderstanding something, it's not possible to add these to the config.ini that the ly module generates, as all settings are added verbatim under globalSection.

https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/display-managers/ly.nix#L61

Steps to reproduce

Expected behaviour

Module option for declaring custom commands and labels, or alternatively extraConfig option to append raw text to the ini file.

Screenshots

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Relevant log output

Additional context

No response

System metadata

not relevant

Notify maintainers

@zacharyarnaise @Vonfry

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Start with nixos/modules/services/display-managers/ly.nix, especially the globalSection handling, and compare it with ly's res/config.ini sections for custom commands and labels. Determine whether dedicated module options or an extraConfig option best supports those sections, then verify that the generated ly configuration can represent them correctly.