Hacker News Reader

not a guide, but I have a build your own KV store project. It is in TDD fashion with the tests. So, you start with simple functions, pass the tests, and the difficulty level goes up. When all the tests pass, you will have written a persistent key-value store.

https://github.com/avinassh/py-caskdb

These are more practical tutorials, but very much a "bottom up" style of learning: https://github.com/practical-tutorials/project-based-learnin...

Not listed there but I also found Ben Eater's 8 bit computer a fantastic learning tool.

I have not read the book yet, but one book i marked to read was this: https://www.manning.com/books/build-an-orchestrator-in-go-fr... Where you build a simple orchestrator from scratch.