fix systemd PATH

flake.nix

@@ -83,7 +83,11 @@
             description = "zineshop daemon";
             serviceConfig = {
               Type = "simple";
-              ExecStart = "${zineshop-pkg}/bin/zineshop";
+              ExecStart = (pkgs.writeScript "start-zineshop" ''
+                 #! ${pkgs.bash}/bin/bash
+                 PATH="$PATH:${lib.makeBinPath [ pkgs.poppler_utils ]}";
+                "${zineshop-pkg}/bin/zineshop"
+              '');
               Restart = "on-failure";
             };
 
@@ -93,7 +97,6 @@
               PORT = "8080";
               STATIC = "/var/lib/zineshop/static";
               VIEWS = "/var/lib/zineshop/views";
-              PATH="$PATH:${lib.makeBinPath [ pkgs.poppler_utils ]}";
             };
 
             preStart = ''