Just the topic you are looking for. I was looking through some resources on design patterns because it started to dawn on me just how paramount a good design pattern is for the success of an application. Hope you find them useful!

One is related to an application layer's design pattern. Another is related to architectural design pattern.

https://blog.phuaxueyong.com/post/2020-04-11-second-four-des... https://blog.phuaxueyong.com/post/2020-04-10-first-four-desi...