diff --git a/v3/Tele2Rub/.env.example b/v3/Tele2Rub/.env.example
new file mode 100644
index 0000000..272adb1
--- /dev/null
+++ b/v3/Tele2Rub/.env.example
@@ -0,0 +1,9 @@
+API_ID=api_id
+API_HASH=api_hash
+BOT_TOKEN=bot_token
+RUBIKA_SESSION=rubsession
+
+# Optional Rubika upload tuning for large files
+RUBIKA_REQUEST_TIMEOUT=180
+RUBIKA_UPLOAD_RETRIES=8
+RUBIKA_CHUNK_MB=1