Firmino
firmino.work
Firmino
@firmino.work
Programmer, Golang & Node.js
Cool but also subject to domain spoofing:

curl install.duckdb.io | sh
October 1, 2025 at 3:24 PM
Depending on the subject, I then ask the LLM to generate a couple of exercises for me.

In the case highlighted on the screenshot, I provided a database schema in a markdown file, and asked the LLM to generate exercises about Postgres Isolation Levels.
August 8, 2025 at 10:22 PM
Not too long ago I started doing something similar. I feed the LLM a url or a pdf, and then ask it to generate a questionnaire.

It's easier for me to ingest content about a subject by having in mind a couple of questions about said subject.

I haven't yet dealt with hallucinations. 10/10
August 8, 2025 at 10:18 PM
I first heard about it on Developer Voices by Kris Jenkins (pca.st/episode/c99f...)

I’m adding a type KSUID and the function to generate ksuids just like what “gen_random_uuid()” does.

It’s these sort of weird use-cases that led me to Rust.
Extending Postgres for High-Performance Analytics (with Philippe Noël)
pca.st
July 25, 2025 at 6:27 PM
As ambitious as it sounds, I am giving a go at building basic Postgres extensions with PGRX (Rust). 🫣 (omg... I can't believe I said that in public).
July 24, 2025 at 4:05 PM
Are you based in the US? I suppose you can report this person to the FBI.

I understand it might be a hassle to do so, but only the FBI would have the means to address that properly.
April 19, 2025 at 7:43 PM
Lastly, for those within Go/Golang ecosystem, the messaging lib Watermill comes in handy in assisting with the implementation of such a pattern.

watermill.io/advanced/for... #golang #eventdrivenarchitecture #eda
Forwarder (the outbox pattern)
Implement outbox pattern by publishing messages in transactional way
watermill.io
April 5, 2025 at 3:17 PM
I have just came back from a short road trip, just because I felt wanted to look at mountains... more closely.
February 8, 2025 at 4:46 PM
Coding Challenges - Intro | Coding Challenges
Welcome to the Coding Challenges.
codingchallenges.fyi
February 8, 2025 at 4:42 PM
Interesting project. Keep up!
February 5, 2025 at 7:57 PM
Go for it! Do you foresee downsides?
January 25, 2025 at 7:59 PM
Thanks, following back.

I rejoined social media mainly to connect with other fellow technologists. 🤝

Cheers,
Firmino
January 24, 2025 at 8:41 PM
How fast would you like it to be? Maybe go-rod.github.io#/ this could be helpful.

Currently, just like you, I am using Playwright because I was way too lazy to explore the options available in Go. ;)
Rod
A Devtools driver for web automation and scraping
go-rod.github.io
January 24, 2025 at 8:39 PM
Maybe @golangci-lint.run could be helpful.
January 24, 2025 at 6:19 PM
Despite writing software using Go, over time I became less bothered by such superfluous comparisons because they tend to come from new comers, who have not ridden other hype cycles such as the one I rode back in 2013~2014: Node.js vs Java.

I must say, I am bit biased towards Java ❤️☕️.
January 24, 2025 at 6:13 PM
Coming from security, have you got any ideas of tools that you’d like to build using Go?
January 24, 2025 at 6:07 PM
LOL 🤣
January 23, 2025 at 1:47 PM