From f6fd5bb49ea2de6c393885fa267a1d1a9500316c Mon Sep 17 00:00:00 2001
From: SebastianStork <git@sstork.dev>
Date: Sun, 8 Feb 2026 01:27:55 +0100
Subject: [PATCH] syncthing: Only sync folders with the right peers

---
 modules/system/services/syncthing.nix | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/modules/system/services/syncthing.nix b/modules/system/services/syncthing.nix
index c9320cd..a745d10 100644
--- a/modules/system/services/syncthing.nix
+++ b/modules/system/services/syncthing.nix
@@ -103,9 +103,12 @@ in
 
             folders =
               cfg.folders
-              |> self.lib.genAttrs (name: {
-                path = "${dataDir}/${name}";
-                devices = hosts |> lib.attrNames;
+              |> self.lib.genAttrs (folder: {
+                path = "${dataDir}/${folder}";
+                devices =
+                  hosts
+                  |> lib.filterAttrs (_: host: host.config.custom.services.syncthing.folders |> lib.elem folder)
+                  |> lib.attrNames;
               });
 
             options = {