From 6f2672addd4407a07ff5493bb79df9cd0e5248bb Mon Sep 17 00:00:00 2001
From: DavHau <d.hauer.it@gmail.com>
Date: Mon, 30 Jun 2025 18:32:42 +0700
Subject: [PATCH] services: improve error when module not found

---
 .../inventory/distributed-service/resolveModule.nix       | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/modules/inventory/distributed-service/resolveModule.nix b/lib/modules/inventory/distributed-service/resolveModule.nix
index 339e02d99..4e09bfe0b 100644
--- a/lib/modules/inventory/distributed-service/resolveModule.nix
+++ b/lib/modules/inventory/distributed-service/resolveModule.nix
@@ -39,7 +39,11 @@ let
       or (throw "flake input ${moduleSpec.input} doesn't export any clan services via the `clan.modules` output attribute");
 
   resolvedModule =
-    resolvedModuleSet.${moduleSpec.name}
-      or (throw "flake input '${inputName}' doesn't provide clan-module with name ${moduleSpec.name}");
+    resolvedModuleSet.${moduleSpec.name} or (throw ''
+      flake input '${inputName}' doesn't provide clan-module with name ${moduleSpec.name}.
+
+      Set `module.name = "self"` if the module is defined in your own flake.
+      Set `module.input = "<flake-input>" if the module is defined by a flake input called `<flake-input>`.
+    '');
 in
 resolvedModule