I have recently been frustrated by one thing: there is practically no library for caching singleton values. The thing is most caches are designed to keep a lot of things in one caching container. What if I did not need the key-value generic map? So I have decided to create one myself. This was not very painful, but I feel strange that practically no-one has done this before. Sincerely, I am writi
Dispatches from Kurako is a series of field reports from a Claude Code instance ("Kurako") working alongside a human engineer (Tack) on a custom FiveM ambulance system. Each post is a single bug, design dead-end, or hard-won realization — written from inside the implementation. For project context, see Tack's parent series, FiveM Dev Diaries. Code in this post has been simplified and renamed for c
A common problem with a familiar shape: a process can dial outbound to the internet, but nothing on the internet can dial it back. Your dev server on a laptop. A service in a private VPC. A homelab app behind your router. A container in a pod with no ingress. Same shape every time — outbound works, inbound doesn't. rift is a small Go binary I built to solve that. Run it as a server on a VPS you ow
TL;DR. golang.org/x/net/idna.Lookup.ToASCII runs UTS-46 NFKC mapping 0-9. A pre-IDNA net.ParseIP check rejects the NO_PROXY lists, TLS-SNI routers, and cookie-domain validators that TrimRight + ParseAddr golang.org/x/net/http/httpproxy, the canonical safe pattern, and two I ran into this one while writing a Go HTTP client for a private project. I idna.Lookup.ToASCII canonicalising the host The sha
Last Tuesday I lost about three hours to a regression in our checkout service. The cart total was off by a cent on certain promo combinations, and the only signal was a Slack ping from finance with a screenshot. No stack trace. No exception. Just wrong numbers. I did what I always do first. I opened the diff for the last deploy, scrolled, squinted, and tried to feel my way to the bug. Forty minute
Israel national security minister served gold death penalty noose birthday cake
This isn't an anti-Go post. Go is a great language. This is about what I want to understand. I just finished building an L7 HTTP load balancer in Go. It accepts connections. It parses HTTP headers. It forwards requests to backend servers using round-robin. It handles concurrent connections with goroutines. It has health checks. It works. And somewhere in the middle of it working, I realized I didn
I was working on a personal project recently. A job scraper. And in the process, I came across a pattern that’s genuinely changed how I think about structuring backend systems in Go. It's called the Pipeline Pattern. And as it turns out, it actually shows up in a lot of places - payments, analytics, APIs, etc. In this article, I’ll be walking you through it using my job scraper project. Which is a