diff --git a/docs/miscellaneous/nestjs-micro-services.md b/docs/miscellaneous/nestjs-micro-services.md
index 7d04d8d04d252f7661be3e337858ed852b037451..6ca28d4ecc68665a6d68452111d48a878eebe100 100644
--- a/docs/miscellaneous/nestjs-micro-services.md
+++ b/docs/miscellaneous/nestjs-micro-services.md
@@ -17,3 +17,12 @@ A service will return a `200` http status code when all indicators are healthy.
 ## Logging
 
 ## Guards or: how to implement an AUTHZ layer
+
+
+## TODO
+
+* Explain how the `validationPipe` works
+* Explain why we need to expose the `Content-Range` header
+* Is the order of NestJS decorations relevant?
+* Explain how data can be exported and imported
+* Explain why we need to use the `pgcrypto` extension