portable emacs

modules/dev/emacs/common.nix

@@ -24,8 +24,20 @@ let
       inherit (pkgs) xdotool;
     }
   );
+  doomDir = ../../../dotfiles/doom;
+  templateFiles = {
+    "events.org" = ../../../dotfiles/doom/templates/events.org;
+    "default.org" = ../../../dotfiles/doom/templates/default.org;
+    "programming.org" = ../../../dotfiles/doom/templates/programming.org;
+  };
+  templateDataFiles = {
+    "doom/templates/events.org".source = templateFiles."events.org";
+    "doom/templates/default.org".source = templateFiles."default.org";
+    "doom/templates/programming.org".source = templateFiles."programming.org";
+  };
 in
 {
+  inherit doomDir templateDataFiles templateFiles;
   packages =
     linuxWindowPackages
     ++ clipboardPackages

modules/dev/emacs/home.nix

@@ -33,11 +33,7 @@ in
     }
     (lib.mkIf cfg.enable {
       home.packages = emacs.packages;
-      xdg.dataFile = {
-        "doom/templates/events.org".source = ../../../dotfiles/doom/templates/events.org;
-        "doom/templates/default.org".source = ../../../dotfiles/doom/templates/default.org;
-        "doom/templates/programming.org".source = ../../../dotfiles/doom/templates/programming.org;
-      };
+      xdg.dataFile = emacs.templateDataFiles;
       services = {
         lorri.enable = pkgs.stdenv.isLinux;
         emacs = {
@@ -51,7 +47,7 @@ in
       };
       programs.doom-emacs = {
         enable = true;
-        doomDir = ../../../dotfiles/doom;
+        inherit (emacs) doomDir;
         doomLocalDir = "${config.xdg.dataHome}/nix-doom";
         tangleArgs = "--all config.org";
         inherit (emacs) extraPackages;

modules/dev/emacs/portable.nix

@@ -0,0 +1,109 @@
+{
+  inputs,
+  pkgs,
+  ...
+}:
+let
+  emacs = import ./common.nix {
+    lib = pkgs.lib;
+    inherit pkgs;
+    stylixEnabled = false;
+    emacsExtraConfig = "";
+    emacsExtraPackages = _epkgs: [ ];
+  };
+  portableFonts =
+    let
+      customFonts = pkgs.stdenvNoCC.mkDerivation {
+        name = "portable-emacs-fonts";
+        src = inputs.fonts;
+        installPhase = ''
+          mkdir -p $out/share/fonts
+          find $src -type f \( \
+            -name "*.ttf" -o \
+            -name "*.otf" -o \
+            -name "*.woff" -o \
+            -name "*.woff2" \
+          \) -exec cp {} $out/share/fonts/ \;
+        '';
+      };
+    in
+    builtins.attrValues {
+      inherit customFonts;
+      inherit (pkgs.nerd-fonts)
+        comic-shanns-mono
+        iosevka
+        caskaydia-cove
+        ;
+    };
+  portableHome = inputs.home-manager.lib.homeManagerConfiguration {
+    inherit pkgs;
+    modules = [
+      ../../../modules/home-manager.nix
+      ../../../config/home-manager.nix
+      {
+        home = {
+          username = "portable";
+          homeDirectory = if pkgs.stdenv.isDarwin then "/Users/portable" else "/home/portable";
+          stateVersion = "23.05";
+        };
+        programs.home-manager.enable = true;
+        nixpkgs.config.allowUnfree = true;
+        my = {
+          emacs.enable = true;
+          dev = {
+            nix.enable = true;
+            python.enable = true;
+            sh.enable = true;
+          };
+          shell.tools.enable = true;
+        };
+      }
+    ];
+    extraSpecialArgs = {
+      inherit inputs;
+      outputs = inputs.self;
+      osConfig = null;
+      preferredShell = "zsh";
+      userEmail = "danilo.reyes.251@proton.me";
+    };
+  };
+  templateFarm = pkgs.linkFarm "portable-emacs-templates" (
+    builtins.attrNames emacs.templateFiles
+    |> map (name: {
+      inherit name;
+      path = emacs.templateFiles.${name};
+    })
+  );
+  fontConfig = pkgs.makeFontsConf {
+    fontDirectories = map (font: "${font}/share/fonts") portableFonts;
+  };
+  package = pkgs.writeShellApplication {
+    name = "doom-emacs";
+    runtimeInputs = [
+      portableHome.config.programs.doom-emacs.finalEmacsPackage
+    ]
+    ++ portableHome.config.home.packages;
+    text = ''
+      export HOME="''${HOME:?HOME must be set}"
+      export XDG_CONFIG_HOME="''${XDG_CONFIG_HOME:-$HOME/.config}"
+      export XDG_CACHE_HOME="''${XDG_CACHE_HOME:-$HOME/.cache}"
+      export XDG_STATE_HOME="''${XDG_STATE_HOME:-$HOME/.local/state}"
+      export XDG_DATA_HOME="''${XDG_DATA_HOME:-$HOME/.local/share}"
+      export DOOMDIR="${emacs.doomDir}"
+      export DOOMLOCALDIR="$XDG_DATA_HOME/nix-doom"
+      export FONTCONFIG_FILE="${fontConfig}"
+      mkdir -p "$XDG_DATA_HOME/doom/templates" "$DOOMLOCALDIR" "$XDG_CACHE_HOME" "$XDG_STATE_HOME"
+      ln -sfn "${templateFarm}/events.org" "$XDG_DATA_HOME/doom/templates/events.org"
+      ln -sfn "${templateFarm}/default.org" "$XDG_DATA_HOME/doom/templates/default.org"
+      ln -sfn "${templateFarm}/programming.org" "$XDG_DATA_HOME/doom/templates/programming.org"
+      exec ${portableHome.config.programs.doom-emacs.finalEmacsPackage}/bin/emacs "$@"
+    '';
+  };
+in
+{
+  inherit package;
+  app = {
+    type = "app";
+    program = "${package}/bin/doom-emacs";
+  };
+}

parts/packages.nix

@@ -3,6 +3,9 @@
   perSystem =
     { system, pkgs, ... }:
     let
+      portableEmacs = import ../modules/dev/emacs/portable.nix {
+        inherit inputs pkgs;
+      };
       mcpServerPkg = pkgs.python3Packages.buildPythonPackage {
         pname = "nixos-mcp-server";
         version = "0.1.0";
@@ -52,9 +55,11 @@
       };
     in
     {
+      apps.doom-emacs = portableEmacs.app;
       packages =
         (inputs.jawz-scripts.packages.${system} or { })
         // {
+          doom-emacs = portableEmacs.package;
           mcp-tests = mcpTests;
           nixos-mcp = nixosMcp;
           nixos-mcp-server = mcpServerPkg;