01Projects

Built, shipped,
still running.

The work I'd show you first. Packages, course projects and older experiments are one click below.

07 projects

Active

BrSuper Internet project

BrTools

The operations platform I created and maintain for an ISP, used by ~200 people. Includes BrTools AI, an agent the whole company uses from chat.

Screenshot of BrTools
TypeScriptNestJSReactAI SDK+8

Active

Noisekun

A web app for mixing ambient sounds to relax or focus, with themes and a pomodoro timer. Open source, with 280+ stars on GitHub.

Screenshot of Noisekun
TypeScriptNext.jsVercel

Active

ASCII Tools

A zero-friction toolkit of in-browser dev utilities — encoders/decoders, hashing, JWT tools, password/UUID generators, a chmod calculator, and a cron editor, all client-side with no server round-trips.

Screenshot of ASCII Tools
TypeScriptReactTanStack StartBun+1

Active

Check DNS Block

Checks whether a list of domains/IPs is blocked on a given DNS server, by comparing its answers against a reference DNS server.

Screenshot of Check DNS Block
RustTypeScriptReact.jsTauri

Active

mateusf.com

This site — a personal hideout for blog posts, book notes, and projects, built as a playground for whatever is interesting at the time.

Screenshot of mateusf.com
TypeScriptTanStack StartTailwind CSSVelite

Archived

Past work with a partner

NetKeeper

A platform for ISPs I built with a partner. It backs up router and OLT configs over SSH/Telnet, with encrypted credentials and a versioned history.

Screenshot of NetKeeper
TypeScriptNestJSReactPython+4

Archived

Built with a partner

Altrua

A volunteering platform where NGOs publish events and volunteers sign up. My FAPAM capstone project: I led it and built the front end.

Screenshot of Altrua
JavaSpring BootPostgreSQLReact+2