AES is an amazing, state-of-the-art encryption system, and it’s built right in to Go as part of the standard library. It’s also incredibly easy to use. Let’s see how!

LLM-powered applications in Go using Gemini, langchaingo and Genkit

A description of generic alias types, a planned feature for Go 1.24

Learn how to create sets using maps. With and without open source packages.

What singleflight does is ensure that only one of those goroutines actually runs the operation, like getting the data from the database. It allows only one ‘in-flight’ (ongoing) operation for the same piece of data (known as a ‘key’) at any given moment.

Ichiban Prolog is a #golang implementation of an ISO compatible Prolog. To learn how to embed it, I decided to add Prolog support to Hellabot, a simple irc bot.
Hellabot design requires to program its triggers using a two step process as described in the…

As a maintainer of the GCC register allocator (RA), I naturally have a keen interest in the register allocators used in various industrial compilers

I spent a lot of time in the past couple of weeks working on a website in Go that may or may not ever see the light of day, but I learned a couple of things along the way I wanted to write down. Here they are:

I recently realized that the stdlib errors package in Go supports joining
multiple errors in addition to the more common %w wrapping.

In the previous post I showed how to do high frequency metrics in PHP with TCP sockets. In this post I'll show how to collect and combine metrics from multiple PHP application servers. Instead of sending the log lines from each server to a single node, the…

Golang reflection is wonderfully horrible. Let's reflect on it.

Go, the greatest teaching language?

Go’s sync.Map isn’t a magic bullet for all concurrent map needs. It’s got some good tricks up its sleeve, like handling reads without locking, but it’s not always the best choice. This article dives into how sync.Map works under the hood, from its two-map…

The Go Windows port added support for high-resolution timers in Go 1.23, boosting the resolution of time.Sleep from ~15.6ms to ~0.5ms.

Besides retries, circuit breakers are probably one of the most commonly employed
resilience patterns in distributed systems. While writing a retry routine is pretty simple,
implementing a circuit breaker needs a little bit of work.
I realized that I usually…

The go:embed feature simplifies the inclusion of static assets in your Go applications. By embedding files and directories at compile time, you can create more portable and self-contained binaries.

In the previous post, I looked into running transactions in a layered architecture. Now, let’s consider transactions that need to span more than one service.
If you work with microservices, a time may come when you need a transaction running across them.…