About me
Engineer and teacher based in Fortaleza, Brazil.
Curious about systems, computers and knowledge — how they are built, how they break and how they can be learned.
on the desk
- The Art of Doing Science and Engineering — Richard Hamming
- Small Sharp Software Tools — Brian P. Hogan
- The Dispossessed — Ursula K. Le Guin
Engineer and teacher based in Fortaleza, Brazil.
Curious about systems, computers and knowledge — how they are built, how they break and how they can be learned.
Notes about computers as things we can open, understand and remake.
- operating systems as designed environments
- old machines and durable ideas
- tools that reveal how they work
The lasting appeal of Unix is not nostalgia. It is the idea that a useful system can be assembled from small, inspectable parts.
Books I am reading, rereading or keeping nearby because they continue to generate questions.
Small circuits, sensors, microcontrollers and the occasional reminder to check polarity twice.
Loose observations, useful commands and questions worth keeping around.
On 23 August I went to Leroy Merlin and bought:
- Diagonal cutting pliers, 6 in
- Half-round nose pliers, 120 mm
- Precision screwdriver set
- Hiraki digital multimeter
- 9 mm utility knife
Still to buy:
- Digital caliper
- Anti-static tweezers
The workstation finally came to life.
The case arrived, everything went together, and the first power-on did not end in smoke — just fans, a boot screen and a machine that stays on.
Proxmox is installed now. Nothing is configured yet: no guests, no storage, no network. Just a hypervisor waiting for the rest of the lab to move in.
More of the technical side lives in the Lab.

