diff --git a/clanServices/syncthing/flake-module.nix b/clanServices/syncthing/flake-module.nix
index 7ab5e40d7..f3f2abb24 100644
--- a/clanServices/syncthing/flake-module.nix
+++ b/clanServices/syncthing/flake-module.nix
@@ -1,6 +1,7 @@
 {
   self,
   lib,
+  inputs,
   ...
 }:
 let
@@ -13,8 +14,30 @@ in
     syncthing = module;
   };
   perSystem =
+    let
+      unit-test-module = (
+        self.clanLib.test.flakeModules.makeEvalChecks {
+          inherit module;
+          inherit inputs;
+          fileset = lib.fileset.unions [
+            # The zerotier service being tested
+            ../../clanServices/syncthing
+            # Required modules
+            ../../nixosModules/clanCore
+            # Dependencies like clan-cli
+            ../../pkgs/clan-cli
+          ];
+          testName = "syncthing";
+          tests = ./tests/eval-tests.nix;
+          testArgs = { };
+        }
+      );
+    in
     { ... }:
     {
+      imports = [
+        unit-test-module
+      ];
       /**
         1. Prepare the test vars
         nix run .#generate-test-vars -- clanServices/syncthing/tests/vm syncthing-service
diff --git a/clanServices/syncthing/tests/eval-tests.nix b/clanServices/syncthing/tests/eval-tests.nix
new file mode 100644
index 000000000..f052af6d6
--- /dev/null
+++ b/clanServices/syncthing/tests/eval-tests.nix
@@ -0,0 +1,62 @@
+{
+  module,
+  clanLib,
+  lib,
+  ...
+}:
+let
+  testFlake =
+    (clanLib.clan {
+      self = { };
+      directory = ./vm;
+
+      machines.machine1 = {
+        nixpkgs.hostPlatform = "x86_64-linux";
+      };
+      machines.machine2 = {
+        nixpkgs.hostPlatform = "x86_64-linux";
+      };
+      machines.machine3 = {
+        nixpkgs.hostPlatform = "x86_64-linux";
+      };
+      machines.machine4 = {
+        nixpkgs.hostPlatform = "x86_64-linux";
+      };
+
+      modules.syncthing = module;
+
+      inventory.instances = {
+        default = {
+          module.name = "syncthing";
+          module.input = "self";
+
+          roles.peer.tags.all = { };
+          roles.peer.settings.extraDevices.phone = {
+            id = "P56IOI7-MZJNU2Y-IQGDREY-DM2MGTI-MGL3BXN-PQ6W5BM-TBBZ4TJ-XZWICQ2";
+          };
+        };
+      };
+    }).config;
+in
+{
+  test_machine1_peers = {
+    expr = {
+      devices = lib.attrNames testFlake.nixosConfigurations.machine1.config.services.syncthing.settings.devices;
+      machine4_ID =
+        testFlake.nixosConfigurations.machine1.config.services.syncthing.settings.devices.machine1.id;
+      externalPhoneId =
+        testFlake.nixosConfigurations.machine1.config.services.syncthing.settings.devices.phone.id;
+    };
+    expected = {
+      devices = [
+        "machine1"
+        "machine2"
+        "machine3"
+        "machine4"
+        "phone"
+      ];
+      machine4_ID = "LJOGYGS-RQPWIHV-HD4B3GK-JZPVPK6-VI3IAY5-CWQWIXK-NJSQMFH-KXHOHA4";
+      externalPhoneId = "P56IOI7-MZJNU2Y-IQGDREY-DM2MGTI-MGL3BXN-PQ6W5BM-TBBZ4TJ-XZWICQ2";
+    };
+  };
+}