diff --git a/README.md b/README.md
index ea9f03c..ccec8b7 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,8 @@ public service, negating all the potential scalability benefits.
 However, it seems that with NestJS, workers could be trivially extracted from
 the public service, as the communication between public controllers and workers
 is done via Redis in this project.
+(Using Redis was not a conscious choice; it is just that NestJS integrated
+queues use Redis internally and do not support other storage/queue backends).
 
 ## Screenshotting