Architecture

The Architect’s Bookshelf - https://architectelevator.com/architecture/architect-bookshelf/
ByteByteGo System Design 101 - https://github.com/ByteByteGoHq/system-design-101
System Design Primer - https://github.com/donnemartin/system-design-primer
Developer Handbook - https://developerhandbook.stakater.com/
Software Architecture Guide - https://martinfowler.com/architecture/
DDD re-distilled - https://yoan-thirion.gitbook.io/knowledge-base/software-architecture/ddd-re-distilled
Reference Architecture - https://github.com/wso2/reference-architecture
System Design - https://github.com/karanpratapsingh/system-design
C4 model - https://c4model.com/