Automating my hard-to-automate garage doors
This is how I automated my garage doors without using a BTN interface. Arriving home is always …
184 Posts
Posts
Announcing GoReleaser v1.22 — steady improvement
Another boring release, with mostly bug fixes and quality-of-life improvements. Highlights …
Integrating Alarm Systems with Homekit
This post documents my journey implementing a Homekit integration for my Intelbras AMT8000 …
Getting love for your open source project, aka, marketing?!
Twitter Spaces with some OSS developers: @caarlos0 @charmcli @jzmusings @meowgorithm …
Announcing GoReleaser v1.21 — mostly bug fixes
A boring release, mostly bug fixes. Boring is good. Highlights You can now sort tags by semver …
A brief and incomplete history of modal text editors
In this post I’m going to talk about some old text editors you probably never heard of, …
Announcing GoReleaser v1.20 — a quality-of-life release
A little over 100 commits in small-ish quality-of-life improvements.
Wishlist Endpoint Discovery
Learn how to use the recently-added Tailscale, DNS, and Zeroconf endpoint discovery in …
Announcing GoReleaser v1.19 — the big release
Almost 200 commits adding Nix, Winget, and much more…
Writing Bubble Tea Tests
Learn how to use x/exp/teatest to write tests for your Bubble Tea apps.
Announcing GoReleaser v1.18 — the maintainers month release
May is the maintainers month, so I would first like to thank all the maintainers out there for …
Using open, pbcopy and pbpaste over SSH
Having your favorite commands available over SSH can be very convenient. I think I talked about …
Announcing GoReleaser v1.17 — the late Easter release
The Easter release is here!
Announcing GoReleaser v1.16 — the late February release
The February release got a little late… better later than even later, I guess! 😄 …
Announcing GoReleaser v1.15 — the first of 2023
Keeping our pace of 1 minor a month, this is the January 2023 release. GoReleaser’s Ko …
My workflow, part 1
I keep getting asked how my setup works, how I use tmux and nvim over ssh… all that good stuff. …
Announcing GoReleaser v1.14 — the Christmas release
Another month, another release! In fact, the last release of the year. This one in particular …
Marshaling SSH Private Keys - Why there's always a different block?
Not long ago, when I was building melt, I learned something interesting: if you restore a …
🎧 Replay: 2022
This is a different kind of post: I’m sharing some music I enjoyed this year! If …
Announcing GoReleaser v1.13 — the November release
Another month, another release! Like the previous 2 releases, this is a beefy one: over 100 …
GoReleaser v1 — one year later
We launched GoReleaser v1 exactly 1 year ago today! onefetch First, I wanted to wholeheartedly …
GoReleaser Split and Merge
Since v1.12.0-pro, GoReleaser can split and merge its release process. This means that you can …
Expanding GitHub Sponsors globally - GitHub Universe
GitHub Sponsors expanded to over 30 new regions this year, Abigail Cabunoc Mayes chat with …
Issuing and using SSH Certificates
SSH certificates allow system administrators to SSH into machines without having to manage …
Sustainability in Open Source - Github and Charm
Talking about improving sustainability of open source with some incredible open source …
Announcing GoReleaser v1.12 — the more-than-a-hundred commits release
The previous release had ~100 commits, and this one has 149 since previous feature release! …
Creating a tag and releasing from a GitHub Action, with GoReleaser
Most people run GoReleaser by creating a tag locally, pushing it, and letting their CI takes …
Announcing GoReleaser v1.11 — the hundred commits release
This release took a while, for all the good reasons: a ton of new features and bug fixes for …
Enabling Nightly releases using GoReleaser Pro
GoReleaser Pro v1.11+ added support to keeping a nightly release. That means that, whenever you …
Shipping completions for Go CLIs using GoReleaser and Cobra
Everyone likes command line completions, so much that some even install extra tools just to …
SSH Tips and Tricks
Since I joined Charm, I’ve been working and learning more about SSH, and I thought I …
Announcing GoReleaser v1.10 — the summer release
Fun fact: it is actually winter now here in Brazil. Regardless, this release is packed with new …
The Maintainers of OSS @ Equinix
A conversation about maintaining OSS and other software-related topics.
My tmux workflow
I wanted to share a quick thing that made my life easier on tmux lately, but before we dig into …
Open Source Brasil Maintainers Event @ GitHub
A conversation about maintaining OSS — in Portuguese.
@TwitterDev x @Charmcli: Developer Tools discovery session
Twitter Spaces with Twitter and Charm folks, discussing favorite developer tools. This Space …
Announcing GoReleaser v1.9 — the 10k stars release
This release contains several minor improvements and a couple of new features! Let’s have …
Using SSH Certificates with Go’s SSH Client
A couple of weeks ago I was working on adding SSH Certificate Authentication support to Wish, …
Joining the split keyboards club: a Moonlander story
This post will describe my experience with a couple of firsts: first mechanical keyboard first …
Reproducible builds with GoReleaser
GoReleaser can help you, to some extent, to have reproducible builds. Reproducible Builds What …
Announcing GoReleaser v1.8 — the GOAMD64 release
This release’s biggest feature is the GOAMD64 support. Highlights support GOAMD64(#3016) …
Announcing GoReleaser v1.7 — The Go 1.18 release
The title would have been more creative if it was GoReleaser 1.18 as well… maybe… …
Announcing GoReleaser v1.6 — the boring release
GoReleaser 1.6 is out! Another “boring” release with some miscellaneous …
Announcing GoReleaser v1.5 — the misc improvements release
GoReleaser 1.5 is out, with a handful of miscellaneous improvements. Highlights Better manpages …
Forwarding Discord's RPC socket over SSH
I’m doing 99% of my coding in a “big” machine instead of my laptop. I do that …
git-worktree is awesome
I’m still mad I haven’t found this out before. Imagine you’re working on …
Announcing GoReleaser v1.4 — the AUR release
GoReleaser can now create and publish Arch Linux PKGBUILD files to Arch User Repositories! …
Announcing GoReleaser 1.3 — the first of 2022
We just launched GoReleaser v1.3, the first release of 2022! Highlights Announce to any HTTP …
./charm.sh
$ glow charm.md Everyone who knows me knows that I love CLI tools. I have my own opinionated …
MacBook Pro 14 - a quick review
I got a MacBook Pro 14" with an Apple M1 Pro SoC, 16GB of memory and 500GB of disk a …
Announcing GoReleaser v1.2 — Santa/5 year anniversary edition
GoReleaser v1.2 is out — likely be the last feature release of 2021. It also marks the first 5 …
Changelog grouping with GoReleaser v1.1
In the v1.1 release, GoReleaser introduced a new feature called “changelog groups”. …
Testing Linux packages on GitHub Actions
One issue we had from time to time on GoReleaser was related to its Linux packages. We had a …
Announcing GoReleaser v1 — the first v1 release
Hello everyone! I’ve been holding on the “v1” release for, checks notes, …
Hacktoberfest Brasil Golang Meetup
A hands-on talk on how to create and set up a project with GoReleaser. In Portuguese.
Schwarz Golang Montly Meetup
A hands-on talk on how to create and set up a project with GoReleaser.
Using the new prebuilt builder on GoReleaser
You can now import pre-built binaries into GoReleaser! This feature was made with mainly two …
Signing releases with cosign and GoReleaser
In GoReleaser v0.176.0 (both OSS and Pro), we released the ability to sign Docker images - with …
Supply chain integrity with GoReleaser using Go mod proxy
Since the infamous SolarWinds attack, supply chain integrity is something a lot of people are …
Multi-platform Docker images with GoReleaser, Podman and GitHub Actions
A few months ago, I published a post on Multi-platform Docker images with GoReleaser and GitHub …
Incrementally measuring my internet speed with Prometheus
I live in Brazil, and, if you’re not familiar, internet usually sucks here. I’m one …
Sri Lanka Golang meetup
A hands on talk on how to create and setup a project with GoReleaser.
Using GoReleaser includes feature
GoReleaser Pro was released about a month ago, and with it, the ability to include GoReleaser …
Announcing GoReleaser Pro
After more than 4 years working on GoReleaser, I’m launching a Pro version! Why? I think …
GoTime #173 - Releasing with (and without) GoReleaser
I was live with Mat, Natalie & Johnny and we talked a bit about releases, with and without …
GoReleaser: 4 years releasing software
Last year, I made a blog post about GoReleaser turning 3 years old. I kind of like it, so this …
macOS Command Line Tools
Today, again, I forgot the command to install Command Line Tools and had to search for it. This …
Why I migrated to the Fish Shell
Back in June, I started porting my dotfiles from ZSH to Fish. Here’s why. Initial …
Multi-platform Docker images with GoReleaser and GitHub Actions
GoReleaser v0.148.0 is out, and with it, the ability to release multi-platform Docker images, …
Making Python respect Docker memory limits
If you run Python inside containers, chances are you have seen Linux’s OOMKiller working …
Kubernetes pod shutdown lifecycle
I always forget the details about Kubernetes pod shutdown lifecycle is something when I need …
Show me your code: how buildkit can help integrating GoReleaser with multi-arch Docker manifests
A discussion with Tibor and Geanluca about Docker buildkit and GoReleaser.
Publishing libraries with GoReleaser
What if I told you you can now automate the release of your libraries as well? I think some of …
Leader Election inside Kubernetes
Ever needed a simple leader election mechanism on something that will run on a Kubernetes …
Kubernetes Jobs: shut down sidecar when main container finishes
Kubernetes Pod lifecycle does not cover everything just yet. I’m working on an app that …
Easy private Helm repositories
Can we have a private Helm repository using GCS as backend? Yes we can! The easier way to …
4K display on MacOS: the saga
I recently got a 4K display, and it didn’t work as I expected on my MacBook Pro. This is …
GKE using Traefik as the ingress controller
I recently fall into a trap using Traefik as the ingress controller in one cluster. I decided …
/uses
Sometimes people ask me what my setup looks like for remote work. I decided to try to keep a …
GoReleaser: 3 years later
GoReleaser’s journey begins in December 21, 2016: the day I made its very first commit. …
1º Open Source Joinville Meetup
Shared some tips about managing medium-sized OpenSource projects. The slides are in Portuguese.
High availability with nats-streaming-server (fault-tolerance)
I wanted to set up a fault tolerant nats-streaming-server, but couldn’t find a …
Faster Docker builds using go modules
Quick tip to improve the docker build speed using go modules. Normally, I would do something …
High availability with nats-streaming-server (clustering)
I wanted to set up a high available nats-streaming-server cluster, but couldn’t find a …
Git: check if a folder changed
Often I need to “do X only if files on some folder changed” or whatever. I always …
GoReleaser Docker support
The next GoReleaser version will have a more flexible Docker configuration format. In this post …
Golang: cache things using interfaces
Caching things can be hard to do and hard to test. In this post I’ll demonstrate a …
Monitoring GitHub releases with Prometheus
I have written some exporters to observe things on GitHub. This is how and why. We will talk …
Using Goss to validate Packer builds
Ever wanted to validate your Packer image with Goss? Well, you can! I was looking into ways to …
Keeping json files formatted
I’m working in a project that uses Chef, so it has a lot of JSON files. I like everything …
GoReleaser: build and push Snapcraft packages from TravisCI
GoReleaser was able to build Snapcraft packages for a long time, but it wasn’t able to …
Hacktoberfest Joinville
I shared some of my experiences coding GoReleaser, this time, more about community and less …
Couchbase: rolling upgrade from 4.5.x to 5.1.x
I have an old Couchbase 4.5.x cluster, and I though it would be nice to upgrade it. This are my …
GopherCon Brasil 2018
A quick review of my second ever GopherCon - the first one as a speaker, and my experience …
GopherCon Brasil
My first ever talk at a GopherCon. I shared my experiences coding GoReleaser, more or less …
Upgrading ElasticSearch 2 to 5: S3 snapshot/restore strategy
Migrating an ElasticSearch cluster from version 2 to 5 can be challenging, even more if it is a …
GoReleaser: lessons learned so far
I’ve started GoReleaser almost 2 years ago. This is a summary of (some) things I’ve …
One month working remote
It has been one month since I started working fully remote, and I think I learned some things I …
Cleanup old GitHub Forks
I like to keep my GitHub clean. I delete forks I’m not using anymore, move old abandoned …
Prometheus authentication with oauth2_proxy
I wanted to set up a prometheus machine for me to monitor random stuff, but I was always …
I'm Joining TOTVS Labs
Everything in life eventually comes to an end, including life itself. This is not that kind of …
GoReleaser: 1k repositories and beyond
When first announced GoReleaser roughly 1 year ago, on January 2017, I never thought it would …
On being an effective developer
Over the years I read several articles on how to be effective, and how the 10x engineer thing …
Moving to Hugo
After some time, I finally decided to move my blog from Jekyll to Hugo. That was probably the …
2º Joinville Go Meetup
It was the Go 1.10 Release party - my talk was about what changed in Go 1.10.
Creating debs and rpms with Go
I’ve been working on GoReleaser for more than a year now, and one of the things that was …
1º Joinville SRE Meetup
I spoke about how we migrate our monitoring infrastructure to Prometheus & Friends, what we …
1º Changelog Meetup
I showed how to build and release binaries in Go, including cross-compiling, Docker images, …
A Repository Graveyard
This past weekend I decided I need to clean up my GitHub profile. In this post I’ll write …
Charting Repository Stars
I always wanted to know how stargazers of my repos increased over time. I didn’t found a …
GKE in production
I’ve been working with DigitalOcean, Heroku and AWS for some years now. Recently, I …
Improving Jekyll build time
I’ve been using Jekyll on my blog since 2012. It is great! But, lately, its slow build …
70% cheaper Kubernetes cluster on AWS
We are running Kubernetes on both sandbox and production for some months now. Our production …
Writing CLI applications with Golang
Last few months I’ve been using Go to write quite a lot of tools. In this post I intent …
Measuring production code coverage with JaCoCo
Microservices is the new fancy way of doing applications. Yet, most companies still have big …
From Travis Enterprise to BuildKite in 50 repositories
At ContaAzul, we use the CI infrastructure a lot. We open several pull requests in several …
Distributed Locking with Redis
At ContaAzul, we have several old pieces of code that are still running in production. We are …
Fast and easy Go binaries delivery
I have some apps written in Go, which I deliver as binaries for each platform using GitHub …
Watchub
Watchub is a service that notifies you of people who followed/unfollowed you and …
Fixing Alerts
As a DevOps/SRE, I spent a reasonable amount of time dealing with metrics and alerts. Usually, …
How to make people love your product
I have seen a lot of posts like this subject, but almost all of them were about stuff you …
Dealing with Maven dependency hell
Every now and then an active java-based project enters in a “dependency hell” …
Setting up a Go build with Glide on CircleCI
I’ve lost a considerable amount of time trying to bind those things together, so I …
Speeding up my ZSH load time
This is the story on how I speed up my terminal load time. Some time ago I shared my dotfiles …
Flag-oriented Programming
booleans, am I right? What a wonderful piece of technology! They help us solve so many …
What is good code?
I’ve been wanting to write this for a long time, just to clarify my thoughts on the …
Continuous Delivery with GitHub, CircleCI, Docker and AWS Elastic Beanstalk
This is just a quick overview of how I did it in antibody’s homepage. Antibody's …
2º #connect(dev)
I gave a little intro on Docker and talked about when to use it or not. No slides or video …
Parse environment variables to structs in Go
In Go, it’s dead simple to get the value from an environment variable: …
Small Go Apps Containers
Or: how to ship your app in a <20Mb container. Well, as you may know, there is a good amount …
Avoid static imports
There are a lot of Java API’s and Frameworks which rely in static methods and the sort. …
Cross-compiling Go
go build generates a binary for the platform you run it in. So, if I build antibody in a Linux …
I wrote Antigen in Go: Antibody
Learning Go was in my TODO list for a while, and finally I did something about it. This post …
Running a Selenium Grid with docker-compose
At ContaAzul, we had 31 Windows machines powering our Selenium tests - one running the grid and …
Docker: The very basics
Or “what the hell is this Docker thing?” Intro According to their website, Docker …
Docker Protips™
Like my old post on git, this is somewhat a collection of useful Docker …
QCon Sao Paulo - 2015: A short overview
So, this week I attended to QCon-SP. The conference was great (congratulations everyone 🍻), …
Using Mockito's InjectMocks
FYI: Like the previous post, this is a really quick tip. Let’s imagine we have two …
Introducing JVM - The Java Version Manager
Last years it becomes more and more common to work in different projects running on different …
Dump a PostgreSQL table as insert statements
FYI: Like the previous post, this is a really quick tip. This week I’m working closely to …
Find non-ASCII chars
FYI: This is a really quick tip. Sometimes things break because of random characters, like '. …
Integrating Minitest with Shippable
I know, everyone uses Travis. I have nothing against it. But in case you want to test and/or …
How to write a good tech job description
Recently I saw a job description of a Brazilian company, more or less like this: Be a …
Jekyll: Reading time without plugins
Estimated reading time of a post is a feature that became popular, I believe, with Medium. …
OpenSourcing my blog again
Once upon a time, my blog was OpenSource. People liked it and forked it tons of times, but they …
Jekyll with Sass
I followed @mdo recent article “Using Sass with Jekyll”, and wanted to point out …
Lint your shell scripts
I will start this by quoting the bashstyle’s readme: Bash is like the JavaScript of …
Don't use junit.framework
Every once in a while I see somewhere a wrong import to the old, deprecated junit.framework …
Using JUnit Rules to simplify your tests
Have you ever wrote JUnit tests extending a class that does some before and after work, so you …
Exponential Backoff with Java 8
Exponential backoff is an algorithm that uses feedback to multiplicatively decrease the rate of …
Elections, in Ruby
Updated with second round script in Oct 26, 2014. Well, last sunday (Oct 5) was the brazilian …
Install JDK on OSX Yosemite
For some reason, Oracle blocked the installers to run only on a fixed OSX version range with a …
Java 8
Earlier this year, the new version of the Java Programming Language was released. Finally, it …
Find the slowest tests of a Java project
I found that it’s pretty hard to have a project with high test coverage and fast …
PullRequest Coverage Blammer Maven Plugin
At the company I work Pull Requests are part of our culture. When someone opens a Pull Request, …
2º Joinville Software Meetup
I encouraged people to start using git, showing some of its features.
This site is now powered by Turbolinks
I think that turbolinks is great: it mades it easy to add AJAX PushState to your Rails …
Fixing Rubygems Certificates
Today, once again, my environment start throwing that SSL cert error. I followed the basics of …
UP v2
So, this is the all-new UP version. It is more based on my own blog in some way, which is a …
Twitter drops Ruby - The Bullshit
This post is about the Twitter change from Ruby to Java, some years ago, fact that, sadly, is …
Ruby: Nil
Following my previous posts with basic Javascript aspects, like context and variable hoisting, …
Javascript Variable Hoisting
This is article is the second of a series of n articles, where n could be any given number …
Javascript Context
People make a lot of confusion about Javascript context mechanism. I don’t think …
JPA2 with Guice
Some time ago, I posted here about a simple project that I’ve done in my post-graduation …
Riding a MS Network with Linux
I work in a company that have an enterily MS-based network, which means, all that domain login …
Git Protips™
Git has a lot of features, and I bet that 90% of who use it (including me) doesn’t know …
Gemify your assets
Rails 3.1 introduced the asset pipeline, which make it easy to include versioned external …
Turbolinks animated page transitions
Since I’ve seen the new Basecamp, I fall in love with it. It’s fast, had sleek …
Unobtrusive JS
One of the principles of Unobtrusive JS is the “separation of functionality (the …
Seven Languages in Seven Weeks: Erlang
So, I just bought “Seven Languages in Seven Weeks”. I’ve read the Ruby …
UP: A Jekyll theme
After a while using Jekyll Bootstrap, I just realized that it was so much bloated. Then, few …
Things that make me dislike Java
So, I just compiled a little list of things that, I believe, make me dislike Java everyday a …
Rails AJAXSpin
A couple of days ago I wrote about how to build a simple and non intrusive AJAX status with …
Dotfiles Are Meant to Be Forked
My desktop Well, it has been a while since I replaced my old (but gold) bash by the great zsh. …
Simple RoR AJAX Status
tl;dr A simple tutorial explaining how to made a simple coffeescript that can automagically …
Configuring a git server with gitolite
Setup You will need: git git-daemon-run ssh gitolite Install everything: $ apt-get install git …
GWT Bootstrap 2.0.4.0 released
For those wo don’t know, GWT-Bootstrap wants to port the Twitter Bootstrap widgets to GWT …
Quick intro to Google Guava
According to the project site on GitHub, The Guava project contains several of Google’s …
Guice Junit test-runner
Yesterday, I wrote a small article talking about Guice and JUnit, so, this time, I’ll …
Guice and JUnit
First of all: Do you use Guice as Depency Injection Container in your Apps? If not, why? Well, …
Theming GWT-Bootstrap
First of all, if you haven’t done it yet, read Getting started with GWT-Bootstrap. Create …
Getting started with GWT-Bootstrap
GWT-Bootstrap is a project that aims to provide all the Twitter Bootstrap styles and widgets to …
Modular Persistence
Hi everybody! One of the classes of my post-graduate was the Java Persistence API (JPA). The …
Hello World
Hello everyone :) I just decided to start posting in my own blog, in English. I had a blog with …