diff --git a/.err b/.err
deleted file mode 100644
index e69de29..0000000
diff --git a/.gitignore b/.gitignore
index e96d5d4..ed80206 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,6 +14,7 @@ crash.*.log
 *.tfvars.json
 *.auto.tfvars
 *.auto.tfvars.json
+!terraform.tfvars.example
 
 # OpenTofu override files — often used for local-only config
 override.tf
@@ -42,3 +43,5 @@ id_ed25519*
 .vscode/
 *.swp
 .DS_Store
+.terraformrc
+terraform.rc
diff --git a/imports.tf b/imports.tf
index 46a3c62..cd3e060 100644
--- a/imports.tf
+++ b/imports.tf
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2026 Alexey Zhokhov
+# SPDX-License-Identifier: Apache-2.0
+
 # Adopt the existing GitHub resources into the default local state before managing them.
 # These stable IDs prevent a fresh state from planning duplicate repositories or rulesets.