refactor: further progress

modules/features/syncthing.nix

@@ -1,19 +1,31 @@
+{
+  config,
+  lib,
+  ...
+}:
+let
+  syncthingMesh = lib.listToAttrs (
+    lib.concatMap (
+      machine:
+      lib.mapAttrsToList (
+        userName: user:
+        let
+          name = "${userName}@${machine.name}";
+        in
+        {
+          inherit name;
+          value = {
+            inherit name;
+            id = user.syncthingId;
+          };
+        }
+      ) (lib.filterAttrs (_: user: user.syncthingId != null) machine.users)
+    ) (builtins.attrValues config.repo.machines)
+  );
+in
 {
   flake.modules.homeManager.syncthing =
     { ... }:
-    let
-      syncthingMesh = {
-        "kiri@orion" = {
-          name = "kiri@orion";
-          id = "NNRNQKZ-OWPHSVA-B6KKBHE-SDYLSTV-7SVHGPR-NEWLKPL-4MWNJG4-G5FHUAI";
-        };
-
-        "kiri@polaris" = {
-          name = "kiri@polaris";
-          id = "6HBAKXB-DB3B4H2-BODCAXF-KD23H5W-6X5LGLC-ZJHZHLG-7U7YMGO-BB6IXQ3";
-        };
-      };
-    in
     {
       services.syncthing = {
         enable = true;