Small software for small screens.

A pair of glasses, two handhelds, a Mac menu bar, and a box on the windowsill.

Muni Tracker's menu bar panel, searching from a saved spot at City Hall: the 5 at McAllister and Hyde, and the F and 7 at Market and 9th — Muni Tracker 2.0.3, searching from a saved spot at City Hall. The live street line is covered.

Geary Blvd & Van Ness Ave · 3 min walk       3:45 PM59° Cloudy · updated 1m               All · 6 routes ▼  2m  14m | 38 OB  Point Lobos  Geary & Van Ness due   9m | 38R IB  Salesforce Transit  Geary & Van Ness 11m  26m | 49 OB  City Collegetap: refresh · hold: pin · double-tap: exit

576 × 288, green light only.

PennyOS home screen in the os8 theme, seventeen app icons with a letter each — 400 × 240, black and white. PennyOS Mobile.

Six apps for the glasses.

576 by 288, sixteen shades of green, in the corner of your eye.

Geary Blvd & Van Ness Ave · 3 min walk       3:45 PM59° Cloudy · updated 1m               All · 6 routes ▼  2m  14m | 38 OB  Point Lobos  Geary & Van Ness due   9m | 38R IB  Salesforce Transit  Geary & Van Ness 11m  26m | 49 OB  City Collegetap: refresh · hold: pin · double-tap: exit

Drawn from each app's display code, not captured from the lens. Names and numbers are examples.

PennyOS.

A handheld computer with a 1280 by 720 screen and a keyboard. Thirty-two apps in four groups, three themes, and a server at home doing the thinking.

Offline maps and directions, messages from five networks, LoRa radios, a terminal, and a lock with a PIN.

1.23.0, 14 Oct 2026. More about PennyOS

PennyOS Home in the cyberdeck theme: four groups on the left, the Work apps in the middle, a clock and the queue on the right.

PennyOS Home in the terminal theme: three blue panels, the groups as directories.

PennyOS Home in the win95 theme: a file manager window with the groups as folders.

1280 × 720, at half size.

PennyOS Mobile.

The pocket one. A palm sized handheld with a thumb keyboard, eighteen apps on one black and white screen, one letter each.

The device holds no service credential, encrypts its card, and asks for a PIN at every boot.

0.49.6, 14 Oct 2026. More about PennyOS Mobile

aAsk
qChat
nNotes
jJournal
vVault
fField
rNews
mMail
wWeather
gGlance
kKeys
xSettings
oSearch
tStore
iLink
pSolitaire
uUsage
cClock

PennyOS home in the terminal theme, the apps listed as a directory with their keys — Home, terminal theme

PennyOS home in the win95 theme, with a taskbar along the bottom — Home, win95 theme

PennyOS standby face with the time, date, battery, usage, moon phase and weather — Standby

PennyOS Usage app showing Claude plan limits as three bars — Usage, reading Claude limits from the server

Drive-By.

A box with a microphone in a window over a busy street. A car goes by with the music up, you tap, and the song is named, added to a playlist, and put on an e-paper frame across the room.

Tap from the box, from a phone page, or from a Shortcut. Or let it listen for two hours.

0.4.0, 7 Oct 2026. More about Drive-By

One app, in the menu bar.

Muni Tracker

Muni Tracker sits in the macOS menu bar and shows when the next Muni vehicles reach the stops around you. It works out how long the walk takes and tells you when to leave. When live data is missing it falls back to the schedule, and it says which one you are looking at.

2.0.3, 17 Jul. macOS 14 or later on an Apple Silicon Mac.