An independent, non-commercial educational visualization of PostgreSQL internals. Not affiliated with Electronic Arts.

I've written more shell scripts than I can count, but I still stumble upon tricks that honestly blow my mind far too often than I care to admit. Latest thing that blew my head clean off? The shell colon.

The year was 2015, halfway through my Computer Science bachelor’s degree. I had spent a few months contributing to open source and my confidence levels were high, so I thought: why not aim for a summer internship at Microsoft?
Microsoft, of all places, might…

The critics are right: PostgreSQL's MVCC bloats tables and amplifies writes. Oracle, InnoDB, SQL Server, MongoDB, LSM stores, and etcd answer the same four design questions differently, and each pays for it somewhere else.

Explaining the biggest misconception in HTML and how one small feature can fix it.

Every system ends up with bad data.

Stacked pull requests break large changes into small, reviewable pull requests. They’re an ordered series of pull requests that each represent focused layers of your change. With stacks, you can…

Abusing an unauthenticated Bluetooth protocol to turn a PC speaker into a Rubber Ducky.

A simple concept that makes software easier to understand, harder to misuse, and safer to change.

Posted by fagnerbrack - 181 votes and 38 comments

I have spent a large portion of my career working in Java. In that time, you get used to huge classes. New functionality? Just add a new method and field to the class. The cost of each new field is rarely considered. Performance is often considered from a…

Cloudflare Research is building a global consensus service called Meerkat that uses a new consensus algorithm called QuePaxa. We plan to use Meerkat to build a strongly consistent, fault-tolerant key-value store, and other applications.

Explore this post and more from the programming community

Posted by Dear-Economics-315 - 99 votes and 49 comments

Field notes on shipping fast, privacy-first, evergreen web products.

Want to follow along with Rust development? Curious how you might get involved? Take a look!

This challenged me to be creative in so many ways! Check out links below.

(You're a tad early to the description! I'll update it soon!)

But since you're early: I made a limited run of stickers of Crow Sign, available first-come first-serve to new patrons…

A LuaJIT NYI silently blacklisted an unrelated hot loop, causing a 20× slowdown. Here's how we tracked it down and now catch it in CI.

Monthly peak hit 207,204 in March 2014. The whole of 2025 produced 108,981 questions, under one peak month. What now happens to the corpus that trained AI?

Event designators have been hiding in not-so-plain-sight since the late 1970s — so powerful that forgetting might be part of a massive conspiracy to wear out developer keyboards faster than otherwise.

Racing to the bottom of CPU performance. Contribute to xoreaxeaxeax/asm-hall-of-shame development by creating an account on GitHub.