11.stylix/modules/swaync/hm.nix

{ mkTarget, ... }:
mkTarget {
  name = "swaync";
  humanName = "SwayNC";

  configElements = [
    (
      { fonts }:
      {
        services.swaync.style = ''
          * {
              font-family: "${fonts.sansSerif.name}";
              font-size: ${toString fonts.sizes.desktop}pt;
          }
        '';
      }
    )
    (
      { colors }:
      {
        services.swaync.style =
          with colors.withHashtag;
          ''
            @define-color base00 ${base00}; @define-color base01 ${base01};
            @define-color base02 ${base02}; @define-color base03 ${base03};
            @define-color base04 ${base04}; @define-color base05 ${base05};
            @define-color base06 ${base06}; @define-color base07 ${base07};

            @define-color base08 ${base08}; @define-color base09 ${base09};
            @define-color base0A ${base0A}; @define-color base0B ${base0B};
            @define-color base0C ${base0C}; @define-color base0D ${base0D};
            @define-color base0E ${base0E}; @define-color base0F ${base0F};
          ''
          + (builtins.readFile ./base.css);
      }
    )
  ];
}