From f12af1fdb88f56d81e8629399d64567cf3eaa64c Mon Sep 17 00:00:00 2001
From: Wael Nasreddine <wael.nasreddine@gmail.com>
Date: Thu, 22 Jan 2026 22:23:41 -0800
Subject: [PATCH] nixos/ncps: Allow postgres as a lock.backend option

---
 nixos/modules/services/networking/ncps.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/networking/ncps.nix b/nixos/modules/services/networking/ncps.nix
index 16737d63626d..2e33abd8b608 100644
--- a/nixos/modules/services/networking/ncps.nix
+++ b/nixos/modules/services/networking/ncps.nix
@@ -237,10 +237,12 @@ in
           type = lib.types.enum [
             "local"
             "redis"
+            "postgres"
           ];
           default = "local";
           description = ''
-            Lock backend to use: 'local' (single instance), 'redis' (distributed).
+            Lock backend to use: 'local' (single instance), 'redis'
+            (distributed), or 'postgres' (distributed, requires PostgreSQL).
           '';
         };