Category: Software

This is the third article in our series, where we design a simple order solution for a hypothetical company called Simply Order. The company expects high traffic and needs a resilient, scalable, and distributed order system. In previous lectures: we built the core services — Order, Payment, and Inventory — and discussed the possible ways…

If you thought the AI gold rush was over, buckle up. At OpenAI DevDay 2025, the company didn’t just drop some new toys — it signaled a tectonic shift in how software will be built, deployed, and consumed. The phrase “AI kills startups” might sound dramatic, but with tools like AgentKit and visual agent builders…

Buy Me a Coffee☕ *Memo: index() can get the index of the element matched to value from the range as shown below: *Memo: The 1st argument is value(Required-Type:Any). Error occurs if value doesn’t exist. v = range(5, 10) print(*v) # 5 6 7 8 9 print(v.index(7)) # 2 print(v.index(10)) # ValueError: 10 is not in…

October 2025 is no different; devs are still battling bugs, cursing compilers, and roasting each other online. Let’s roll through the highlights. Text-Based Shitposts That Hit Too Close to Home Sometimes the best laughs come from simple rants or lists that sum up dev life perfectly. These are popping up on X and forums, and…

The much-anticipated Python 3.14 was officially released on October 7, 2025, marking the latest evolution of the world’s most popular programming language. This release brings a host of new features, performance enhancements, and quality-of-life improvements for developers. Following a structured 17-month development cycle, Python 3.14 delivers on its promise of a more performant and developer-friendly…

Rick Beato takes you track-by-track through his favorite Kansas song, pulling apart the stems, structure, and all those little musical decisions that make it tick. If you’ve ever wondered what goes on behind the scenes of a classic prog-rock gem, this live breakdown is your backstage pass. Plus, for a limited time, you can snag…

Introduction Suppose you want to convert an integer value to its decimal string representation, e.g., 42 to “42”. In C, you have to know how big to make the string buffer. Specifically, given some integral type T, you need to know how many decimal digits comprise max(T) (and min(T)). Using sizeof alone doesn’t help since…

MatPat spent months dissecting every frame of Five Nights at Freddy’s: Secret of the Mimic trying to nail down its darkest secrets—but now he’s back to see if his theory holds up. He’s joined by two fellow sleuths who each swear they’ve got the real answer, and together they’re pitting their ideas head-to-head to find…

Principio de Sustitución de Liskov (LSP)¿Qué explica este principio? El Principio de Sustitución de Liskov establece que una subclase debe poder reemplazar a su clase base sin afectar el correcto funcionamiento del programa. En otras palabras:Si tienes una clase llamada Ave y creas una subclase Pato, esta última debe poder ser utilizada en cualquier lugar…