A follow up to what is the go proxy even doing? now with more answers. Russ Cox (rsc) and I traded a few emails trying to work out what was going on. They’re going to make a few changes, and I also learned a few things it would have been helpful to know.

With the latest release of Go 1.25, there are two notable changes to the sync.WaitGroup type, both of which stem from common mistakes that developers make when using the WaitGroup type. In this post we are going to explore both of these changes and how they can help you avoid a common race condition.

This post provides a step-by-step breakdown of how to run Go tooling inside a browser by compiling it to WASM. The Go logic is exposed to JavaScript using Bazel Go rules, though the process can be replicated without the Bazel build system. The example used is the assembler for the Mrav CPU.

Understand key concepts in concurrency by solving the dining philosophers problem step by step while discussion different subtle problems and intricacies. Full code in Go is provided towards the end.

GoferBroke is a lightweight, extensible tool designed for building distributed clusters using an anti-entropy gossip protocol over custom binary TCP.

Anubis is a Web AI Firewall Utility that weighs the soul of your connection using one or more challenges in order to protect upstream resources from scraper bots.

This program is designed to help protect the small internet from the endless storm of requests that flood in from AI companies. Anubis is as lightweight as possible to ensure that everyone can afford to protect the communities closest to them.

Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experimentation (A/B testing), and dynamic configuration. It has clear swagger REST APIs for flags management and flag evaluation.

A 13-part guide to building scalable, efficient, and resilient networked applications in Go—grounded in real-world benchmarks, low-level optimizations, and practical design patterns.

The challenge, simulate millions of particles in golang, multi-player enabled, cpu only, smart tv compatible.

GoMLX is an easy-to-use set of Machine Learning and generic math libraries and tools. It can be seen as a PyTorch/Jax/TensorFlow for Go.

tablewriter is a Go library for generating rich text-based tables with support for multiple output formats, including ASCII, Unicode, Markdown, HTML, and colorized terminals. Perfect for CLI tools, logs, and web applications.

Gojekyll is a partially-compatible clone of the Jekyll static site generator, written in the Go programming language. It provides build and serve commands, with directory watch and live reload.

pgschema is a CLI tool that brings terraform-style declarative schema migration workflow to Postgres

Terminal OpenAPI Spec viewer

Terminal REST client for .http/.rest files with HTTP, GraphQL, and gRPC support.

Metrics are the quantitative backbone of observability—the numbers that tell us how our systems are performing. This is the third post in our OpenTelemetry naming series, where we've already explored how to name spans and how to enrich them with meaningful attributes. Now let's tackle the art of naming the measurements that matter.

GoCraft is a powerful, production-ready Go backend generator that helps developers quickly scaffold modern microservices with their preferred frameworks, databases, and features. Generate complete, well-structured Go applications in seconds with built-in best practices, security features, and comprehensive documentation.

GOWA - WhatsApp REST API with support for UI, Webhooks, and MCP. Built with Golang for efficient memory use.

Provide a consistent approach to hashing and equality checks in custom data structures.