Carlos Rabelo

22 Jul 2026

The Crowdfunding Campaign and Panetone

A crowdfunding campaign on Instagram reminded me why I like this work.
29 Jun 2026

I took everything down

On June 29, 2026 I left WordPress, cleared the blog, and moved to Hugo. A deliberate restart — and what comes back only comes back if it still makes sense.
07 May 2026

The hard part isn't having ideas. It's sitting down and doing the work.

From the outside, it looks like I just solve things and never stop. Inside, I have ADHD and a daily fight. What sustains delivery isn't magic — it's method.
26 Apr 2025

Negev — MAC-based VLAN automation

Managing VLANs by hand across dozens of switches is repetitive and error-prone. Negev solves that by reading the MAC table and assigning the right VLAN to each port automatically.
28 Sep 2023

GRC — Gmail Rule Converter

When the inbox overflows, a YAML file can be worth more than a thousand clicks.
17 Sep 2023

Binary Trees, Databases, and 38 Years Apart

In 1985, a magazine article taught me what a binary tree was. In 2023, I implemented one in Go inside a dBase II clone. Between those two moments, the same idea — only the tool changed.
17 Jul 2023

Learning Go with dBase II — or: recreating 1983 in 2023

After BIP38, the method stayed the same: pick a project that is too big and just start. This time, a complete clone of dBase II — the language I used in the 90s.
05 Apr 2022

Learning Go with BIP38 — or: how to overcomplicate a learning journey

The best way to learn a language is to build something you actually want to exist. Even if it is a Bitcoin key encryption tool.
15 Nov 2020

act — or: How I Stopped Committing and Started Testing GitHub Actions Locally

GitHub Actions is great until you need to test it. The pattern is always the same: commit, push, wait, fail, fix, commit, push, wait. Until one day I found act.
15 Jun 2020

Ninety days — an account of the lockdown at IFMT

It has been ninety days since the IFMT campus closed its doors. In that time, I taught teachers to run classes on Meet, created YouTube channels, set up graphics tablets, and automated Google Classroom. A look back at what happened — and at what is still not over.