Harmonograph

About

Harmonograph replaces your new tab with a focused view of today: your assigned Linear issues, your Google Calendar meetings, and a row of world clocks for the time zones you actually work across.

The background is a live harmonograph animation — a different figure on every tab, generated from two oscillating frequencies. The same mathematics as the physical device that draws Lissajous curves with pendulums and ink.

What's on screen
— Linear tasks assigned to you, sorted by in-progress → overdue → due today → priority
— Today's Google Calendar events, with conference links when available
— World clocks along the bottom

Settings
— Linear API key (read-only)
— Google Calendar with per-calendar selection
— Four themes: dark, warm, blue, red
— Configurable time zones and clock labels

Getting started
Connect Linear via a read-only Personal API key found under Settings → Security & Access → Personal API Keys. Connect Google Calendar through the settings panel — read-only calendar access only.

Open source. No data leaves your browser.