Add macOS launchd support to home-manager module

docs/start/install/nix.md

@@ -44,9 +44,10 @@ in {
 
 Re-apply your home-manager configuration the usual way (e.g. `home-manager switch`).
 
-You will then have an `emanote` command in your profile, and a systemd
-user service running a live-preview of your notes.
+You will then have an `emanote` command in your profile, and a background
+service running a live-preview of your notes (systemd on Linux, launchd on macOS).
 
+On Linux:
 ```sh
 $ home-manager switch
 ...
@@ -62,5 +63,14 @@ $ systemctl --user status emanote.service
              └─1705303 /nix/store/9hj2cwk1jakfws0d1hpwa221kcni3j45-emanote-0.3.12.1/bin/emanote --layers /nix/store/hr7wp1xvqn48b8gy16sdq6k2csrvr8c1-emanote-config;/home/user/notes
 ```
 
+On macOS:
+```sh
+$ home-manager switch
+...
+$ launchctl list | grep emanote
+-	0	org.nix-community.home.emanote
+$ tail ~/Library/Logs/emanote.log
+```
+
 [home-manager]: https://nixos.asia/en/home-manager
 [module]: https://github.com/srid/emanote/blob/master/nix/modules/home/emanote.nix

emanote/CHANGELOG.md

@@ -7,6 +7,7 @@
 - UI revamp (#622)
   - Dark mode (#605, #617)
 - Mermaid: add `elk` layout (#618)
+- Home Manager module: macOS support via launchd (#623)
 
 ## 1.4.0.0 (2025-08-18)
 

nix/modules/home/emanote.nix

@@ -100,7 +100,7 @@ in
   config = lib.mkIf cfg.enable {
     home.packages = [ cfg.package ];
 
-    systemd.user.services.emanote = {
+    systemd.user.services.emanote = lib.mkIf pkgs.stdenv.isLinux {
       Unit = {
         Description = "Emanote web server";
         PartOf = [ cfg.systemdTarget ];
@@ -115,5 +115,23 @@ in
         '';
       };
     };
+
+    launchd.agents.emanote = lib.mkIf pkgs.stdenv.isDarwin {
+      enable = true;
+      config = {
+        ProgramArguments = [
+          "${pkgs.lib.getExe cfg.package}"
+          "--layers"
+          "${lib.concatStringsSep ";" layers}"
+          "run"
+          "--host=${cfg.host}"
+          "--port=${builtins.toString cfg.port}"
+        ];
+        KeepAlive = true;
+        RunAtLoad = true;
+        StandardOutPath = "${config.home.homeDirectory}/Library/Logs/emanote.log";
+        StandardErrorPath = "${config.home.homeDirectory}/Library/Logs/emanote.log";
+      };
+    };
   };
 }