nixos-config/home-manager/modules/emacs/default.nix

{ pkgs
, config
, lib
, ...
}:
with lib; let
  cfg = config.eboskma.programs.emacs;
  emacs = with pkgs; ((emacsPackagesFor emacsPgtkNativeComp).emacsWithPackages (epkgs: [ epkgs.emacsql epkgs.emacsql-sqlite ]));

  orgProtocolDesktop = pkgs.makeDesktopItem {
    name = "org-protocol";
    desktopName = "Emacs Org Protocol Handler";
    icon = "emacs";
    categories = [ "Development" "TextEditor" ];
    keywords = [ "org-protocol" ];
    type = "Application";
    exec = "${emacs}/bin/emacsclient -- %u";
    terminal = false;
    mimeTypes = [ "x-scheme-handler/org-protocol" ];
    startupWMClass = "Emacs";
  };

  valeToINI = generators.toINIWithGlobalSection {
    mkKeyValue = generators.mkKeyValueDefault
      {
        mkValueString = v:
          if builtins.isList v then builtins.concatStringsSep ", " v
          else generators.mkValueStringDefault { } v;
      } " = ";
  };
in
{
  options.eboskma.programs.emacs = {
    enable = mkEnableOption "activate emacs";
    daemon = mkOption {
      description = "Whether to enable emacs daemon";
      type = types.bool;
      default = true;
      example = false;
    };
  };

  config = mkIf cfg.enable {
    programs.emacs = {
      enable = true;
      package = emacs;
    };

    services.emacs = mkIf cfg.daemon {
      enable = true;
      package = emacs;
      client.enable = true;
      socketActivation.enable = true;
    };

    home.packages = with pkgs; [
      (texlive.combine {
        inherit (texlive) scheme-small wrapfig ulem capt-of;
      })
      orgProtocolDesktop
      nodePackages.bash-language-server
      vale
      vale.data
    ];

    home.file.".vale.ini".text = valeToINI {
      globalSection = {
        StylesPath = "${pkgs.vale.data}/share/vale/styles";
        MinAlertLevel = "suggestion";
      };
      sections = {
        "*" = {
          BasedOnStyles = [ "vale" "proselint" "write-good" ];
        };
      };
    };
  };
}