1 files changed, 37 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/x11/display-managers/sx.nix b/nixpkgs/nixos/modules/services/x11/display-managers/sx.nix
new file mode 100644
index 000000000000..132531c0ddc0
--- /dev/null
+++ b/nixpkgs/nixos/modules/services/x11/display-managers/sx.nix
@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let cfg = config.services.xserver.displayManager.sx;
+
+in {
+  options = {
+    services.xserver.displayManager.sx = {
+      enable = mkEnableOption "sx pseudo-display manager" // {
+        description = ''
+          Whether to enable the "sx" pseudo-display manager, which allows users
+          to start manually via the "sx" command from a vt shell. The X server
+          runs under the user's id, not as root. The user must provide a
+          ~/.config/sx/sxrc file containing session startup commands, see
+          sx(1). This is not automatically generated from the desktopManager
+          and windowManager settings. sx doesn't have a way to directly set
+          X server flags, but it can be done by overriding its xorgserver
+          dependency.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ pkgs.sx ];
+    services.xserver = {
+      exportConfiguration = true;
+      displayManager = {
+        job.execCmd = "";
+        lightdm.enable = mkForce false;
+      };
+      logFile = mkDefault null;
+    };
+    systemd.services.display-manager.enable = false;
+  };
+}