diff --git a/flake.nix b/flake.nix
index 003f181..7440df6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,13 +8,12 @@
   outputs = {
     self,
     nixpkgs,
-  }: let
-        src = fetchTarball {
-                url = "https://git.stuce.ch/stuce/sTodo/releases/download/Release1/release1.tar.gz";
-                sha256 = "10jyldwmcs5zyz1k8lp3jscn7nhlvn56g0709l5jp91qimw7xiqz";
-        };
-  in 
+  }:
 {
+    src = fetchTarball {
+        url = "https://git.stuce.ch/stuce/sTodo/releases/download/Release1/release1.tar.gz";
+        sha256 = "10jyldwmcs5zyz1k8lp3jscn7nhlvn56g0709l5jp91qimw7xiqz";
+        }; 
     packages.x86_64-linux.sTodo = with nixpkgs.legacyPackages.x86_64-linux;
       stdenv.mkDerivation {
         pname = "sTodo";
@@ -62,7 +61,10 @@
       # Systemd Service
       config = lib.mkIf cfg.enable {
         environment.etc."sTodo" = {
-                source = "${src}/static";
+                source = fetchTarball {
+        url = "https://git.stuce.ch/stuce/sTodo/releases/download/Release1/release1.tar.gz";
+        sha256 = "10jyldwmcs5zyz1k8lp3jscn7nhlvn56g0709l5jp91qimw7xiqz";
+        }; 
           };
         systemd.services.sTodo = {
           description = "Launch a sTodo app to have a online todolist";