Alex Rios (RFC ghost writer)

⛩️ Supreme Leader ⛩️
Author of System Programming Essentials with Go.
Posts about Tech Leadership, Go and Zig.

Also on bsky:

[Alex Rios (RFC ghost writer) @alextrending]

Eu em fast forward
https://t.co/rXYBkNzZ6S
#BlackLivesMatter #BlackTechTwitter

[Alex Rios (RFC ghost writer) @alextrending]

https://t.co/yCoSCOEYrP

[Alex Rios (RFC ghost writer) @alextrending]

Novo ensaio!

A transição de Senior para Principal é, na maior parte, maturidade aplicada sob pressão, somada a algumas fraturas específicas que a indústria raramente nomeia. A seção final usa Espinosa e prometo que, no contexto, fica menos pretensioso do que soa aqui.

[Alex Rios (RFC ghost writer) @alextrending]

https://t.co/KIHmdx8oL9

[Alex Rios (RFC ghost writer) @alextrending]

O Congo tem 24 trilhões de dólares em minerais no subsolo. O congolês médio vive com menos de 2 dólares por dia.

Isso não é um acidente. É design.

Patrice Lumumba entendeu isso em 1960, disse em voz alta e viveu mais seis meses.

[Raphael Amorim @raphamorims]

Raphael Amorim just announced a new programming language called Jam

https://t.co/QrKvaH5Ql7

[Gophercon Africa @gophers_africa]

⏰ ONE DAY LEFT!

The Call for Papers for #GopherConAfrica2026 closes TOMORROW (May 31st).

Got a Go story to tell? A clever hack? A lesson learned?

Step onto the stage in Nairobi 🇰🇪

📅 Oct 15–17

Submit 👉 https://t.co/q2SKBXX9hq

Tickets 🎟️ https://t.co/1IZx40uYVc

#Golang

[Alex Rios (RFC ghost writer) @alextrending]

No outro post eu falei sobre coesão. Chegou a hora de falar de acoplamento.

https://t.co/ZQOKZmpfAu

[Alex Rios (RFC ghost writer) @alextrending]

I talked about cohesion; now it's time to talk about coupling.

https://t.co/LDTfdYfOcb

[Gophercon Africa @gophers_africa]

One week left to submit your talk for #GopherConAfrica2026

📅 CFP closes 31st May
📍 Nairobi, Kenya
🗓️ 15–17 October, 2026

Don’t miss your moment 🎤

Get tickets ↓
https://t.co/1IZx40uYVc

#GopherConAfrica #GoLang #CFP

[Alex Rios (RFC ghost writer) @alextrending]

A velocidade de produção de código aumentou. O senso de design, não.

A coesão continua sendo o que o revisor precisa trazer.

https://t.co/rKIE46mgDe

[Alex Rios (RFC ghost writer) @alextrending]

The speed of code production is up. The taste isn't. Cohesion is what the reviewer still has to bring.

https://t.co/K2EoT6gDuB

[Alex Rios (RFC ghost writer) @alextrending]

DRY was originally about knowledge, not characters. Two pieces of code can look identical and represent completely unrelated facts about the world.

A rule I've used for a decade to filter the "I should DRY this up" instinct.

https://t.co/riwU04WrHt

[Alex Rios (RFC ghost writer) @alextrending]

https://t.co/CO1al850LB

[Alex Rios (RFC ghost writer) @alextrending]

The title says it all.

[Alex Rios (RFC ghost writer) @alextrending]

https://t.co/isSsgP96G9

[Alex Rios (RFC ghost writer) @alextrending]

21% das peer reviews submetidas a uma das conferências mais importantes de machine learning foram inteiramente geradas por IA.
Citações alucinadas. Feedback que não engajou com o paper.

Ninguém percebeu até alguém resolver checar. Isso está acontecendo na engenharia de software também. Code reviews, RFCs, design docs, demos para os stakeholders.

Os rituais continuam. Os artefatos parecem corretos. Mas a fricção produtiva que obriga as pessoas a pensar, defender e aprender desapareceu.

Quando a IA gera o artefato, o loop de feedback fica oco. O sênior dá a crítica. O júnior anota. Mas ninguém do outro lado está aprendendo com isso.

Escrevi sobre o que quebra quando a gente continua fingindo que processos desenhados pra humanos ensinarem humanos ainda funcionam quando é a IA que gera o trabalho.

[Alex Rios (RFC ghost writer) @alextrending]

https://t.co/0Q61QZAEe5

[Alex Rios (RFC ghost writer) @alextrending]

While prepping my @gopherconeu talk, I was reading Go's CPU detection code and spotted a one-line nesting mistake that has silently disabled GFNI detection on every consumer-grade Intel CPU shipped since 2021 (Alder Lake, Raptor Lake, the N-series mini-PCs, all of it).

The fast path was sitting right there, and Go was reporting false. Wrote up the full story: the line, the hardware, the fix, and what it actually buys users (honest answer: less than the headline suggests, more than you'd think).

[Alex Rios (RFC ghost writer) @alextrending]

https://t.co/Idfsnxy65b

[Alex Rios (RFC ghost writer) @alextrending]

New essay! The Floor and the Fractures.

The Senior-to-Principal transition is mostly adulthood applied under pressure, plus specific fractures the industry rarely names.

The closing section uses Spinoza, which I promise is less pretentious in context than it sounds here.

This one is for the patient reader.