Matheus Mina
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Matheus Mina
@mfbmina.dev
110 followers 35 following 72 posts
Brazilian, dog lover, martial artist and computer scientist!
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go.dev/blog/greente...
The Green Tea Garbage Collector - The Go Programming Language
Go 1.25 includes a new experimental garbage collector, Green Tea.
go.dev
November 1, 2025 at 2:22 PM
mfbmina.dev
The Go Way - by @eltonminetto.dev

#golang

www.youtube.com/watch?v=KrgI...
The Go Way
YouTube video by Elton Minetto
www.youtube.com
October 13, 2025 at 2:13 PM
mfbmina.dev
Hey guys, new post at the blog!

#go #golang

mfbmina.dev/en/posts/202...
Breaking down Go's sync package
In my opinion, Go provides excellent support for concurrent work, not only due to goroutines but also because of the language’s ecosystem. A great example of this is the sync package, which helps sync...
mfbmina.dev
October 2, 2025 at 11:59 AM
mfbmina.dev
Finalmente palestrei pela primeira vez na @GolangSP em evento que aconteceu no @picpay. O tema escolhido foi o pacote Sync e aproveitei para fazer um post complementar no blog.

#go #golang
Destrinchando o pacote sync do Go
Na minha opinião, Go fornece um excelente suporte a se trabalhar concorrentemente não só pelas goroutines, mas pelo ecossistema da linguagem. Um grande exemplo disso é o pacote sync, que auxilia na si...
mfbmina.dev
October 2, 2025 at 11:56 AM
mfbmina.dev
Fala galera! No dia 01/10 vou apresentar uma lightning talk na Golang SP e no PicPay! Espero vocês todos lá, pois o evento vai ser bem massa!

#go #golang #meetup

www.meetup.com/golangbr/eve...
Golang SP & PicPay - #102, Wed, Oct 1, 2025, 6:00 PM | Meetup
## Details ✅ **EVENTO PRESENCIAL E GRATUITO** ❗️**Informações Importantes:** *Só clique no botão da reserva se realmente puder comparecer presencialmente no evento.* *Lemb
www.meetup.com
September 17, 2025 at 6:18 PM
mfbmina.dev
This Friday, I changed the whole blog layout! What you think about it?

mfbmina.dev
mfbmina.dev
by Matheus Mina
mfbmina.dev
August 29, 2025 at 6:45 PM
mfbmina.dev
Essa sexta-feira eu troquei todo o layout do blog! O que vocês acharam?

mfbmina.dev
mfbmina.dev
by Matheus Mina
mfbmina.dev
August 29, 2025 at 6:44 PM
mfbmina.dev
mfbmina.dev/en/posts/wai...

#go #golang #concurrency
Waitgroups: what they are, how to use them and what changed with Go 1.25
Imagine the following problem: you need to process hundreds of records and generate a single output. One way to solve this is to process each record sequentially and unify the output only at the end. ...
mfbmina.dev
August 23, 2025 at 3:19 PM
mfbmina.dev
mfbmina.dev/posts/waitgr...

#go #golang #concurrency
Waitgroups: o que são, como usar e o que mudou com o Go 1.25
Imagine o seguinte problema: é necessário processar centenas de registros e gerar uma única saída. Uma forma de resolver é processar cada registro sequencialmente e só no fim unificar a saída. Contudo...
mfbmina.dev
August 23, 2025 at 3:15 PM
mfbmina.dev
Bora falar de Go
August 14, 2025 at 9:39 PM
mfbmina.dev
Fala galera, passando pra divulgar uma vaga numa equipe próxima aqui: picpay.com/oportunidade...
Central de Vagas PicPay: conheça e candidate-se
Saiba tudo sobre a vaga de Senior Software Engineer e candidate-se agora!
picpay.com
August 8, 2025 at 2:35 PM
mfbmina.dev
testcontainers: melhorando testes E2E

mfbmina.dev/posts/testco...

#go #golang #tests #docker #testcontainers #bolhadev #comunidadedev #bolhatech #comunidadetech
testcontainers: melhorando testes E2E
Em um post anterior mostrei algumas formas de melhorar os testes criando mocks das APIs que chamamos. Porém, isso nem sempre é suficiente e podemos precisar de testes E2E (ou testes de aceitação), co...
mfbmina.dev
July 24, 2025 at 4:18 PM
mfbmina.dev
testcontainers: improving E2E tests

mfbmina.dev/en/posts/tes...

#go #golang #tests #docker #testcontainers
testcontainers: improving E2E tests
In a previous post I showed some ways to improve tests by creating API mocks that we call. However, that’s not always enough, and we might need E2E tests (or acceptance tests), for example, to test i...
mfbmina.dev
July 24, 2025 at 4:13 PM
mfbmina.dev
ordep.dev/posts/writin...
Writing Code Was Never The Bottleneck
LLMs make it easier to write code, but understanding, reviewing, and maintaining it still takes time, trust, and good judgment.
ordep.dev
July 6, 2025 at 1:25 PM
mfbmina.dev
Hey people! My last post got featured @ Golang Weekly!

Check it out with other awesome posts!

#golang #go

golangweekly.com/issues/559
Golang Weekly Issue 559: June 25, 2025
golangweekly.com
June 26, 2025 at 12:17 PM
mfbmina.dev
Olá! Post novo no blog: Acabando com código morto nos projetos Go

mfbmina.dev/posts/golang...

#go #deadcode #refactor #programming #comunidadedev #bolhadev #comunidadetech #bolhatech
Acabando com código morto nos projetos Go
Conforme o software que trabalhamos vai crescendo, a tendência é do código passar por diversas mudanças e refatorações. Nesse processo, podemos simplesmente esquecer pedaços de código que um dia foram...
mfbmina.dev
June 19, 2025 at 3:31 PM
mfbmina.dev
Hey! New post at the blog: Eliminating dead code in Go projects

mfbmina.dev/en/posts/gol...

#go #deadcode #refactor #programming
Eliminating dead code in Go projects
As the software we work on grows, the code tends to undergo various changes and refactorings. During this process, we might simply forget pieces of code that were once used but no longer make sense in...
mfbmina.dev
June 19, 2025 at 3:30 PM
mfbmina.dev
mfbmina.dev/en/posts/gol...

#go #golang #tokenbucket #algorithm #trafficcontrol
Exploring the Rate package and the Token Bucket algorithm
At my Circuit Breaker post, I mentioned that nowadays it is common that the application has to communicate with other ones, and with that, traffic control strategies become essential. Recently I’ve ...
mfbmina.dev
May 16, 2025 at 12:16 AM
mfbmina.dev
mfbmina.dev/posts/golang...

#go #golang #tokenbucket #algorithm #trafficcontrol #bolhadev #bolhatech #comunidadedev #comunidadetech
Explorando o pacote Rate e o algoritmo de Token Bucket
No post sobre Circuit Breaker, citei que atualmente é comum que a sua aplicação tenha que se comunicar com outras e, com isso, estratégias de controle de tráfego se tornam essenciais. Recentemente de...
mfbmina.dev
May 16, 2025 at 12:12 AM
mfbmina.dev
jub0bs.com/posts/2025-0...
Why concrete error types are superior to sentinel errors
TL;DR ¶ Exported concrete error types are superior to sentinel errors. They can be more performant, cannot be clobbered, and promote extensibility. Third-party function errutil.Find is a powerful alte...
jub0bs.com
April 24, 2025 at 12:42 PM
mfbmina.dev
Go Tool: tudo o que ninguém pediu

mfbmina.dev/posts/go-tool/

#go #golang #depencymanagement #news #opinion #bolhadev #bolhatech #comunidadedev #comunidadetech
Go Tool: tudo o que ninguem pediu
Depois de muitos anos trabalhando com Ruby, migrei para trabalhar com Go sem muita experiência com a linguagem. Meu primeiro atrito foi com a gestão de dependências, pois sempre achei a versão de depe...
mfbmina.dev
April 5, 2025 at 3:34 PM
mfbmina.dev
Go Tool: everything that nobody has asked for

mfbmina.dev/en/posts/go-...

#go #golang #depencymanagement #news #opinion
Go Tool: everything that nobody has asked for
After many years working with Ruby, I migrate to Go without much experience with the language. My first friction was with dependency management because I always find it bad, with fuzzy commands and, t...
mfbmina.dev
April 5, 2025 at 3:32 PM
mfbmina.dev
Go 1.24: Testes de Benchmark

mfbmina.dev/posts/benchm...

#go #golang #testing #news #bolhadev #bolhatech #comunidadedev #comunidadetech
Go 1.24: Testes de Benchmark
Uma das minhas funcionalidades favoritas em Go é a possibilidade de se escrever testes de benchmark. Agora na versão 1.24, essa funcionalidade ganhou uma cara nova, se tornando ainda mais fácil de ser...
mfbmina.dev
March 25, 2025 at 12:39 AM
mfbmina.dev
victoriametrics.com/blog/go-http2/ by @func25.bsky.social
How HTTP/2 Works and How to Enable It in Go
HTTP/2 solves head-of-line blocking at the application layer by multiplexing multiple streams over a single TCP connection. While HTTP/1.1 requires requests to be processed sequentially, HTTP/2 allows...
victoriametrics.com
February 24, 2025 at 11:26 AM
mfbmina.dev
Hi everybody,

I wrote mine perceptions about the book The Mythical Man-Month, from Fred Brooks. A software engineering literature classic.

I hope you enjoy it!

#tech #books #softwareengineering

mfbmina.dev/en/posts/the...
The Mythical Man Month
After reading the book the Goal , I went after the next reading, and I was recommended to read The Mythical Man-Month, from Fred Brooks. This book is a computer science class, which I didn’t know yet,...
mfbmina.dev
February 17, 2025 at 2:18 PM