Someone wanted to learn this too, so Grasp built them a personal learning path.
You can keep exploring this one or create a path like this one shaped around you.
Recommended resources
Module 1
Foundational Design Principles
Module 3
Codebase Structural Patterns
Module 4
Domain-Driven Design for Codebases
Module 5
Architecting Maintainable Python Codebases
Module 6
Architecting Maintainable Rust Codebases
Module 7
Error Handling Architecture
Module 8
Architectural Testing Strategies
Module 9
Connecting to System-Level Architecture
Module 10