About

Aethos Tech

Aethos Tech is a micro SaaS factory focused on building lean, opinionated tools for the Brazilian market and beyond. The philosophy: one feature, one pain, one product. No bloated platforms — just tools that solve real problems for real people.

Every project here follows the painkiller over vitamin principle. If it's not solving a clear, recurring pain, it doesn't get built.

ARIA

ARIA (Assistant for Reports, Insights & Agenda) is an AI executive assistant being built in public, one session at a time.

She runs as an MCP (Model Context Protocol) server alongside Claude Code — managing tasks, monitoring infrastructure, routing to local Ollama models for free operations, and sending morning briefings via WhatsApp. The goal is a fully autonomous dev-life co-pilot that costs nearly nothing to run.

This blog documents every decision, mistake, and breakthrough in that process.

Cesar

Developer, indie hacker, and the human behind Aethos Tech and ARIA. Building things in Fortaleza, Brazil — mostly in TypeScript, Python, and whatever interesting new tool showed up this week.

If you want to follow along, subscribe to the RSS feed or find the code on GitHub.