Programming Tutorials

Velocity is a full-stack web framework for Go. Pre-1.0 and shipping in public. vel.build. Prerequisites You need: Go 1.26+ — go versi

Hello there! I've been building a small personal AI agent called nevinho. It lives in my Discord DMs and helps me with everyday stuff. Bash commands,

I got tired of fighting Word docs and Canva templates every time I updated my resume. Your resume is structured data. A name, jobs, dates, skills. On

You write two goroutines. One sets a variable, the other reads it. You run it a thousand times and it works fine. Then it breaks in production, on a d

I freqently copy output from Claude Code or GitHub Copilot CLI to store it in my personal notes for followup or to share a message on Slack. In doi

KEIBIDROP encrypted file transfer and shared filesystem between two devices https://keibidrop.com KeibiDrop connects two devices directly and lets t

When I built Staxa, a platform that deploys isolated customer environments from source code, I needed to answer a deceptively hard question. "The use

As a best-selling author, I invite you to explore my books on Amazon. Don't forget to follow me on Medium and show your support. Thank you! Your supp

Most integration systems don’t break immediately. They fail silently over time by corrupting your data. I learned this the hard way while building ER

Our security CLI produced findings engineers couldn't triage without hours of research. We applied Andreas Zeller's defect/infection/failure chain fro

In the previous post, we built a simple CRUD API in Go using in-memory storage. Now let’s make it real-world ready by connecting it to a database: 👉

Replacing static API keys with 5-minute, self-destructing Ed25519 tokens sounds great—until your Redis node dies, NTP drifts, or you realize you have

The Go service runs locally, tests pass. Then you remember the tests are hitting the real Binance API. The next day, CI fails: rate limit exceeded, un

disclaimer: It is just a pattern that wraps Goroutine and channel. It is still Goroutine underneath. It is not bringing "coloring" to Go code. Functio

You have ten agent pods on a cluster, each running a different runtime image. Every Tuesday somebody publishes a new version of one of them. Are you g

Hi, I’ve been working on a small Go project called Metarc: It's an Open Source file archiver and I’d be curious to get feedback from the community.

In the rising era of artificial intelligence and information processing speeding up everywhere, I needed to slow down to force myself to deliberately

I've been wanting to learn Go properly for a while. Tried the usual — read the docs, watched tutorials, copy-pasted examples. Nothing stuck.

Github: github.com/rhysmcneill/ssmctl I use AWS Session Manager a lot. No bastion hosts, no open ports, full CloudTrail audit trail — it's the righ

0. A Backup Is Not a File, but a Promise You can write anything you want in the logs: backup completed successfully WAL uploaded success