From a17b76dea19cda75cb47feb301b722315919fbe4 Mon Sep 17 00:00:00 2001
From: BardMoon <144455455+BardMoon@users.noreply.github.com>
Date: Mon, 1 Sep 2025 17:06:02 +0900
Subject: nix/hm: add systemd.target in home-manager (#532)

* nix: add systemd.target

* fix: format

* Update README.md

* Update hm-module.nix

https://github.com/Vladimir-csp/uwsm/blob/cf2b1d84059f1954d4ec864f2b46a86515acc3c1/example-units/hyprpaper.service#L19

* fix

* Update README.md
---
 README.md         |  5 ++++-
 nix/hm-module.nix | 13 ++++++++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 61034f0..c033353 100644
--- a/README.md
+++ b/README.md
@@ -213,7 +213,10 @@ For NixOS users, a home manager module is also available.
 ```nix
 programs.caelestia = {
   enable = true;
-  systemd.enable = false; # if you prefer starting from your compositor
+  systemd = {
+    enable = false; # if you prefer starting from your compositor
+    target = "graphical-session.target";
+  };
   settings = {
     bar.status = {
       showBattery = false;
diff --git a/nix/hm-module.nix b/nix/hm-module.nix
index 533b2f6..ef463b8 100644
--- a/nix/hm-module.nix
+++ b/nix/hm-module.nix
@@ -25,6 +25,13 @@ in {
           default = true;
           description = "Enable the systemd service for Caelestia shell";
         };
+        target = mkOption {
+          type = types.str;
+          description = ''
+            The systemd target that will automatically start the Caelestia shell.
+          '';
+          default = "graphical-session.target";
+        };
       };
       settings = mkOption {
         type = types.attrsOf types.anything;
@@ -65,8 +72,8 @@ in {
       systemd.user.services.caelestia = lib.mkIf cfg.systemd.enable {
         Unit = {
           Description = "Caelestia Shell Service";
-          After = ["graphical-session.target"];
-          PartOf = ["graphical-session.target"];
+          After = [cfg.systemd.target];
+          PartOf = [cfg.systemd.target];
           X-Restart-Triggers = lib.mkIf (cfg.settings != {}) [
             "${config.xdg.configFile."caelestia/shell.json".source}"
           ];
@@ -86,7 +93,7 @@ in {
         };
 
         Install = {
-          WantedBy = ["graphical-session.target"];
+          WantedBy = [cfg.systemd.target];
         };
       };
 
-- 
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