Software Architect and Co-Founder at TagoIO
I build systems that move device data fast. When they fail at 3 a.m., I am the one reading the logs.
Based in Mount Dora, FL. Originally from Brazil. I write systems software, native desktop and Apple apps, protocol engines, and side projects that range from "production-ready" to "it compiles on my machine."
Warm Burnout: Theme suite for developers who already burned out but still have deadlines. Mostly warm palette, one cool accent for types, WCAG-audited contrast.
Reqeast: Multi-protocol API client for Mac, iPhone, and iPad. HTTP, gRPC, WebSocket, SSE, TCP, and UDP in one app, synced over iCloud. SwiftUI on top, Rust underneath. Good enough for people who refuse to run Electron.
MQTee: MQTT 3.1.1 and 5.0 client for Apple platforms. Topic tree browser, iCloud sync, Shortcuts and Siri, Rust engine underneath.
OpenIt: Single-file viewer and editor that opens before the Dock icon finishes its first bounce. Markdown, config files, PDFs, and images. Rust on GPUI for macOS, Windows, and Linux.
DeathPush: Desktop Git client with VS Code Source Control muscle memory and none of the editor. Diffs, staging, branches, stash, conflicts, blame.
PlayOnAir: Chromecast and Nest speakers as AirPlay 2 targets. Lossless to the speaker, multi-room in sync, Apple Home and Siri. Runs as a Home Assistant app, a Docker image, or a single binary.
I co-founded TagoIO, an IoT platform for device management, data analysis, and dashboards at scale. I work on backend systems, protocols, and the paths that move millions of device messages per day without losing the plot.
TagoTiP: Transport IoT Protocol. Lightweight, human-readable, transport-agnostic wire protocol. About 4.7x smaller than HTTP/JSON, optional AEAD encryption for links without TLS.
Rust and Swift for most of what's above. C for embedded and FFI. TypeScript when the web leaves no other choice.
Systems I work with daily: AWS, PostgreSQL, Redis, MQTT, Docker, Linux, and whatever protocol someone decided to invent this week.
Target shooting and home automation (see PlayOnAir). Sometimes both feel like debugging.
@felip3fdl · Reqeast · MQTee · DeathPush · Warm Burnout · TagoIO







