# Hugo Almeida (yeksax)

> Public portfolio of a product engineer in São Paulo who builds real-time systems, AI agent platforms, product interfaces, and software for small teams.

Hugo Almeida works where product design, UX, and systems architecture meet. The portfolio is available in English and Brazilian Portuguese, selected from the request language. All canonical URLs below return complete server-rendered HTML and do not require JavaScript for their primary content.

## Primary resources

- [Portfolio home](https://yeksax.dev/): Profile, capabilities, selected work, writing, and contact details.
- [Complete LLM-readable portfolio](https://yeksax.dev/llms-full.txt): Consolidated Markdown with project details, technical stacks, architecture notes, and published writing.
- [RSS feed](https://yeksax.dev/feed.xml): Published writing in English.
- [XML sitemap](https://yeksax.dev/sitemap.xml): Canonical indexable URLs.

## Work

- [Live Status](https://yeksax.dev/work/live-status): A real-time system that follows a match and pushes every play to fans on WhatsApp. When I took it over, recaps arrived minutes late. I rebuilt it into a channel people could use to follow the game live.
- [Showmatch Irresistível](https://yeksax.dev/work/hellmanns): The hotsite for the Hellmann's × FURIA promotion: buy the product, register the coupon, and enter for a chance to join a showmatch with the team at Brazil's biggest CS2 tournament. A promotion of this size is legally operated by a third party on its own domain, so the site brings that flow into ours instead of sending buyers to an unfamiliar URL halfway through.
- [Bolão Furioso](https://yeksax.dev/work/bolao-furioso): A World Cup prediction pool where the whole product is a WhatsApp thread: you send a score, and when the match ends the flow scores every prediction, recomputes the standings, and tells each person how they did. The public page shows the same ranking without exposing any of the phone numbers behind it.
- [Cammus](https://yeksax.dev/work/cammus): A content product for founders and specialists. The agent interviews the brand, maps the narratives its niche has left open, and writes for each channel. Every creative is an HTML fragment captured by a headless browser, so typography, color, and layout are brand tokens in CSS. Change the palette and every existing piece redraws without being regenerated.
- [Sonar](https://yeksax.dev/work/sonar): Small e-commerce businesses run on whatever platform they started with, and every report has to be rebuilt for each provider. Sonar normalizes orders, products, carts, and customers into its own model, then runs dashboards, campaigns, and automations on top of that model instead of someone else's API.
- [TRFlow](https://yeksax.dev/work/trflow): An accounting firm's work is the same set of deadlines every month, multiplied by every client. TRFlow models that work as workflows with their own statuses, generates recurring tasks, collects what it needs from clients through a portal instead of an inbox, and keeps the entire trail auditable.
- [MyCost](https://yeksax.dev/work/mycost): Retail buying runs on WhatsApp threads and spreadsheets: every supplier quotes in a different format, and nobody can compare the proposals. MyCost puts stores and suppliers on the same quote map and follows each purchase through to the invoice that closes it.
- [QuickTag](https://yeksax.dev/work/quicktag): Shelf and product labels are printed by the hundreds every day by people who are not going to open a layout editor. QuickTag turns a production routine into a work order, a work order into labels, and each label into the ZPL the printer expects.
- [Lattice](https://yeksax.dev/work/lattice): Agents produce plans, audits, and reports as standalone HTML, and those files rot in a downloads folder or disappear with the chat. Lattice registers each one by absolute path without copying, moving, or rewriting it, then builds a searchable library from what is already on disk. The filesystem stays the source of truth, and publishing remains a separate, deliberate act.
- [Tether](https://yeksax.dev/work/tether): Android and macOS share an owner and little else. Tether is a Swift daemon on the Mac and a Compose app on the phone, talking over the tailnet. Either side can check battery status and control volume, brightness, theme, and Do Not Disturb, while each device renders the other with its real wallpaper. It is personal infrastructure, not a product. The next step is a BLE path for when the Mac has no network at all.

## Writing

- [Real-time Systems Are Easy to Get Wrong](https://yeksax.dev/furia/realtime-systems-are-easy-to-get-wrong): When a real-time system goes wrong, speed is rarely the only problem. The usual culprits are consistency, ordering, and small details that compound over time.

## Contact

- [Email](mailto:hey@yeksax.dev): hey@yeksax.dev
- [GitHub](https://github.com/yeksax): Public code and open-source work by yeksax.
- [LinkedIn](https://linkedin.com/in/hugo-as): Professional profile for Hugo Almeida.

## Optional

- [Privacy](https://yeksax.dev/privacy): Plain-language description of the site's minimal analytics.