Featured
UTF-8 is a Brilliant Design – The name is self explanatory, UTF-8 has a brilliant design to represent all characters while being full compatible with ASCII.
Quiet Influence: A Guide to Nemawashi in Engineering – A practical and small tip about how to influence and have your technical proposals approved easily as you became more senior engineer.
Writing Code Is Easy. Reading It Isn’t. – Most people think that most of the work is based on coding, but was is difficult is reading and building mental models of it, LLMs can easily generate code for you, but the hardest part, understand, you still need to do it.
Attention Is the New Big-O – Every tip about how to write better prompts are useful, this post gives a great one about how to give clear instructions to LLMs and the reason behind it.
MISC
AI vs Gen Z: How AI has changed the career pathway for junior developers – AI is drastically changing the career pathway of juniors developers, especially the recent grads.
How Ruby Executes JIT Code: The Hidden Mechanics Behind the Magic – JIT compilers are a hot topic among many programming languages communities right now, this posts explains how Ruby the ruby one work.
The Great WebSocket Hunt: 50,000 Connections, Zero Crashes: The WebSocket Optimisation Journey in Elixir – How many websockets are a basic server capable of handle? This journey is useful to learn that sometimes the limits are not on the programming language itself, but on the underlying operation system or hardware.
Python has had async for 10 years — why isn’t it more popular? – After 10 years since its release why python’s asyncio is not more popular?
Being good isn’t enough – As you progress in your carrear, being technically good isn’t enough, and the key to get better is to ask for feedback and be humble.
I Tried Every Todo App and Ended Up With a .txt File – Many people get stuck on one of the many todo apps out there, sometimes everything that you need is just a simple text file with your tasks.
Getting AI to Work in Complex Codebases – Manage context is the hardest task while working with LLMs on complex codebases, this post introduces some techniques to deal with it.
how AWS S3 serves 1 petabyte per second on top of slow HDDs – AWS S3 is one of the top software engineering marvels, capable of handling 1PB/s while still running on top of slow hard drives to provide infinite storage with low cost. This post explains how they’re able to do it.
Building a DOOM-like multiplayer shooter in pure SQL – I like this endless challenges of “Building DOOM using/on X”, this one is very interesting! Building a multiplayer shooter like DOOM on pure SQL. The end result is simpler than I initially imagined.
Memory Allocation in Go – Great in-depth guide about how memory allocation works in Go. Grab and enjoy this long journey. The same author also has an amazing post about Go scheduler.
Processes and Threads – It’s always good to remember some basic concepts about computers, this post is one of the best that I’ve ever seen about processes and threads.
O. Valadares' Blog 