Migrated my zero-allocation UUID library to Zig 0.16.
alexrios.me/blog/migrati...
Posts by Alex Rios
I'm fairly certain you've approved a PR without really reading it.
The junior got a green checkmark. Moved on. Never learned why the abstraction was wrong.
The feedback loop closed. Nothing traveled through it. And this goes way beyond code review.
Um trilhão de dólares evaporou do mercado de software em fevereiro. O mercado batizou de SaaSpocalypse.
A gente age como se fosse a primeira vez que uma indústria inteira descobre que virou commodity. Não é. Esse filme passa a cada duas ou três décadas.
I finally published my book about Postgres!
Check it out here: lnkd.in/eakHPn6E
Thanks @alexrios.me for the very good feedback, and @franckpachot.bsky.social for taking the time on reading the book and writing the foreword.
More details here:
www.linkedin.com/pulse/my-boo...
O silêncio do seu melhor engenheiro é muito mais perigoso do que as reclamações dele. 🧵
Se ele parou de questionar ideias ruins e agora só diz "o que o time decidir", ele não ficou "maduro". Ele está esmaecendo.
Shipped a UUID library with all tests green.
Found silent data corruption hours later: bitCast on a negative timestamp produces a UUID from the year 10889. No panic, no error. Just wrong. #Zig
alexrios.me/blog/uuid-zi...
Engineers still repeat NoSQL limitations from 2013 as if nothing changed. I went through every claim one by one. PostgreSQL addressed them all. The rest is engineering theater.
alexrios.me/blog/choosin...
Em 1744, o homem que viria a ser sinônimo de finanças globais nasceu numa viela de 3 metros de largura, trancada por portões toda noite.
Mil anos de história explicam como os judeus foram empurrados pras finanças. E por que culpá-los é exatamente o que o sistema precisa que você faça.
alexrios.me/blog/uuid-zi...
Most UUID libraries pick 2-3 versions, skip the edge cases, and call it done. This one implements all 7 versions from RFC 9562 in a single Zig file. Zero heap allocations, and it actually handles the weird clock problems.
github.com/alexrios/uuid
If you've ever tried to reverse-engineer intent from a 3-year-old Git commit and an archived Slack channel... this one is for you.
I put together some thoughts on the silent force that actually shapes our architecture, why "not deciding" is an invisible tax on engineering teams, and how to navigate the messy reality of decision archaeology without losing your mind.
They’re the "temporary" fixes, the inherited defaults, and the five-minute shortcuts that slowly compound into the reality every engineer has to deal with.
We spend so much time arguing over RFCs and drawing perfect diagrams, but the truth is, the most consequential decisions in our codebases are often the ones that were never actually made.
Ever poked around a system and found three completely different patterns doing the exact same thing? 😅
You ask your tech lead: "Who made this architectural decision?" The answer: Nobody. It just... happened.
open.substack.com/pub/alexrios...
I’ll be speaking at #gophercamp in Brno (Apr 23–24, 2026).
I’ll cover in detail the brand new Garbage Collector: The Green Tea!
If you're into Go, this is a great place to be 💚 .
gophercamp.cz
That gap between what AI feels like and what AI does is where most of the confusion about engineering hiring lives right now. New piece on why the substitution narrative is wrong, and what's actually worth worrying about.
Developers in a controlled study thought AI made them 20% faster. They were actually 19% slower. The perception didn't change even after they saw the data.
A radicalização política americana não é um fenômeno cultural. É um produto industrial. Tem financiadores, linha de montagem e mercado de exportação.
Em 2002, uma organização financiada pelos irmãos Koch registrou o domínio usteaparty.com. Sete anos depois, uma
"onda espontânea" de protestos varreria os Estados Unidos.
A ironia é que quase todo clássico da Disney veio de histórias que não eram dela. O que acontece quando uma empresa constrói um império no terreno comum e depois muda as regras do jogo?