From 19c005b5e3557e936ea97b4e591e0768742bca4d Mon Sep 17 00:00:00 2001
From: BardMoon <144455455+BardMoon@users.noreply.github.com>
Date: Tue, 2 Sep 2025 18:51:38 +0900
Subject: nix/hm: add extraEnvironment (#533)

* nix: add extraEnvironment in home-manager

This PR enables users to easily add environment variables to make systemd services work properly in all use cases. #390

* Update README.md

* Update README.md

* fix

* Update hm-module.nix

* Update hm-module.nix

* extraEnvironment to environment

* Update README.md

* [CI] chore: update flake

* fix

---------

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
---
 README.md         |  1 +
 nix/hm-module.nix | 11 ++++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c033353..8992cf8 100644
--- a/README.md
+++ b/README.md
@@ -223,6 +223,7 @@ programs.caelestia = {
     };
     paths.wallpaperDir = "~/Images";
   };
+  environment = [];
   cli = {
     enable = true; # Also add caelestia-cli to path
     settings = {
diff --git a/nix/hm-module.nix b/nix/hm-module.nix
index ef463b8..7eb6efa 100644
--- a/nix/hm-module.nix
+++ b/nix/hm-module.nix
@@ -43,6 +43,14 @@ in {
         default = "";
         description = "Caelestia shell extra configs written to shell.json";
       };
+      environment = mkOption {
+        type = types.listOf types.str;
+        description = "Extra Environment variables to pass to the Caelestia shell systemd service.";
+        default = [ ];
+        example = [
+          "QT_QPA_PLATFORMTHEME=gtk3"
+        ];
+      };
       cli = {
         enable = mkEnableOption "Enable Caelestia CLI";
         package = mkOption {
@@ -87,7 +95,8 @@ in {
           TimeoutStopSec = "5s";
           Environment = [
             "QT_QPA_PLATFORM=wayland"
-          ];
+          ]
+          ++ cfg.environment;
 
           Slice = "session.slice";
         };
-- 
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