Apps

Apps I made, most of them for myself first.


Building now

Most of my time goes to these two. I build both with a team, and you can read the source of both.

  • Bipe app icon

    Bipe Messenger

    iOS, Android

    A messenger for Brazil, built on the open Matrix protocol and hosted in Brazil. There is no advertising profile, and verified identity is free, so nobody can pretend to be you. Pix payments are built in. In the end we want an association of member organizations and users to run it, so that no company or government, us included, can change the rules alone.

    bipe.chat · About · Source

  • Starlings app icon

    Starlings Workspace for small firms

    macOS, iOS, Android, web

    A workspace where every call, message, task and document is filed on the client or project it belongs to. People and AI agents work on the same record, so an agent can read a project's history and draft the follow-up. Calls happen inside Starlings. The host's own device writes the transcript, and Starlings never records audio or video.

    starlingshq.com · About · Source


House

Small apps I made for my own use, all open source. The Mac menu-bar ones share a package called HouseKit, so they look and behave alike.

  • Sift app icon

    Sift Saved links

    macOS

    Turns open tabs, Reading List, Instagram saves and X bookmarks into a library on your Mac. It keeps the text of every page, finds the themes you keep coming back to, and gives each link a next step. Your own Claude does the sorting.

    Needs: Full Disk Access, and Claude Code or an Anthropic API key.

    Download · Source

  • Tessellate app icon

    Tessellate Window manager

    macOS

    Press ⌥Space, then an arrow key, and the focused window moves left, right, to the top or bottom half, or to the center. It covers the small part of a window manager I actually use.

    Needs: Accessibility permission.

    Download · Source

  • Clip app icon

    Clip Clipboard history

    macOS

    Press ⇧⌘V for a list of what you copied, newest first. Type to filter, press Return, and it pastes into the app you were in. Text only.

    Needs: Accessibility permission, so it can paste for you.

    Source

  • Lift app icon

    Lift Standing desk

    macOS

    Raises and lowers a Linak desk, like the IKEA Idasen, over Bluetooth. Two presets, two hotkeys, and the desk height in the menu bar.

    Needs: A desk with a Linak Bluetooth controller.

    Source

  • Cargo app icon

    Cargo Media library

    macOS

    Brings finished Put.io downloads home to an SSD and files them by title and season so Infuse can read them. It deletes the Put.io copy only after it has checked the local file byte for byte.

    Needs: A Put.io account and a drive for the library.

    Source

  • Headroom app icon

    Headroom AI coding quotas

    macOS, iOS, watchOS

    My Claude, Codex and Cursor quotas and CI status in the menu bar, on my phone and on a small screen on my desk. Tokens stay on the Mac.

    About · Download · Source

  • Subs app icon

    Subs Subtitles

    macOS

    Drop a video on the menu bar icon. Subs finds the matching subtitle on OpenSubtitles and saves it next to the file.

    Needs: A free OpenSubtitles account and API key.

    Source

  • EST app icon

    EST Card game

    iPhone, iPad

    Find three cards where every trait is all the same or all different. Play solo against the clock, pass one phone around, or duel across two devices.

    App Store · Source


ESP32

Firmware for small round screens on my desk. Offline where it can be.

  • tinyarcana app icon

    tinyarcana Tarot reader

    ESP32-S3

    A tarot deck that fits on a microcontroller: the twenty-two Major Arcana, a past, present and future spread, and a reading of what the three cards say to each other. Offline, with no account or API.

    Needs: A Waveshare ESP32-S3 1.75-inch round AMOLED board.

    Source

  • Lofi Air app icon

    Lofi Air Desk radio

    ESP32-S3

    Lo-fi music with live air traffic control mixed underneath, on a small desk radio with a round screen and an airport globe.

    About


Products

Bigger projects with their own sites.

  • Septena app icon

    Septena Life tracking

    iOS, macOS

    One private app for everything I track about myself: training, food, sleep, habits, tasks and more.

    septena.app · About

  • TinySuite app icon

    TinySuite File editors

    macOS

    Small native editors and viewers for the files I open every day: text, Markdown, JSON, YAML, CSV, logs, PDFs and Postgres tables.

    tinysuite.app · About


Other

Things I built to try an idea.

  • Athanor app icon

    Athanor Screen saver

    macOS, tvOS, iOS

    Sacred geometry that draws itself, as if with compass and straightedge. A screen saver, an Apple TV app and an iPhone wallpaper maker.

    Source

  • Cartogram Wallpaper

    macOS, iOS

    Wallpapers that map where your photos were taken. Everything runs on your device.

    Download · Source