I'm second-career web developer (writing mostly Ruby) since 2022, meaning I didn't get a computer science degree and don't do any low-level programming for work. So this list is me catching up on those.
My "Learn Ruby" list slightly overlaps with the material in this list, namely in the sections "Foundations" and "Beyond Ruby".
- Hardware systems
- Operating systems
- Concurrency
- Database internals
- Compilers
- Data structures and algorithms
- Zig
- C
- C game programming
- 💲Code: The Hidden Language of Computer Hardware and Software
- NandGame and solutions: 1, 2, 3
- From Nand to Tetris: Part 1, Part 2
- Practice building a computer in CircuitVerse, Logisim Evolution, or 💲Turing Complete
- Dive into Systems
- 💲Digital Design and Computer Architecture
- 💲Computer Systems: A Programmer's Perspective
- Is Parallel Programming Hard, And, If So, What Can You Do About It?
- Distributed Systems
- Gossip Glomers (distibuted systems challenges)
- How does a relational database work?
- Architecture of a Database System
- How Does a Database Work?
- 💲Database Internals
- Transaction Processing
- The Internals of PostgreSQL
- Readings in Database Systems
- Destroy All Software - A Compiler from Scratch
- Writing a compiler in Ruby, bottom up and related resources at the bottom of that page
- 💲Crafting Interpreters
- 💲Build Your Own Compiler from Scratch
- 💲Data Structures and Algorithms in Java
- 💲The Algorithm Design Manual plus lecture videos
- 💲Algorithm Design
- 💲Algorithms
- 💲Introduction to Algorithms
- Tech Interview Handbook
- 💲Cracking the Coding Interview
- 💲Beyond Cracking the Coding Interview (solutions for free at interviewing.io)
- 💲Elements of Programming Interviews
- Ruby solutions: 1, 2, 3, 4, 5
- Algorithms Ruby gem that is included in the LeetCode environment.
- Grind75
- 14 Patterns to Ace Any Coding Interview Question
- 20 Essential Coding Patterns to Ace Your Next Coding Interview
- Coding Interview Patterns
- AlgoMonster - Patterns
- LeetCode Patterns
- 💲Grokking the Coding Interview: Patterns for Coding Questions
- An interview algorithms tier list
- Another algorithms tier list
- Other resource lists: 1, 2, 3
- Introduction to Zig: a project-based book
- Zig - "Learn" page listing other resources
- Zig + raylib: raylib-zig (based on RayZig?), examples, a template with raygui
- 💲C Programming: A Modern Approach
- CS50 problem sets (1-5) and solutions: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
- Tutorial on pointers and arrays in C
- Exercism - C
- Advent of Code: CLI/runner written in C; I can't find any repos with solutions for all years, but probably there are repos with solutions for a specific year.
- Look into other "better C" languages besides Zig: Odin, Beef, V, Jai, C3, MiniLang, and others (minus the C++ replacements like Rust, which are too complex for my purposes)
- Handmade Hero videos plus Handmade Penguin to follow along in Linux
- Handmade Quake videos and source code
- Kohi Game Engine videos
- Make a game, taking inspiration from high_impact, raylib, Box2D 3.x (or see box2d-raylib)
- Or make a text-based game: see How to program a text adventure in C and Knuth's C port of Colossal Cave Adventure (which, incidentally, is an example of literate programming, now reincarnated in Entangled)
- Handmade Network