A Japanese page-a-day tear-off calendar that lives in your Mac menu bar. Each day brings a new page styled after traditional Japanese print calendars — complete with era names (令和), rokuyō, lunar dates, and even sexagenary year zodiac animals on the Huangli page.
When the day is done, grab the page and rip it off. The sheet resists, the fibers crackle, and the torn piece flutters off the bottom of your screen. Tomorrow is underneath. There is no undo — that's the whole point.
Features:
- Real paper physics — the top sheet is a verlet-integrated 11×14 grid with inextensible distance constraints and stiff bending constraints, simulated in 3D so the bulge toward you is what shortens the on-screen page, exactly like real paper.
- Tearing that behaves like tearing — pull down, or flip the sheet up from the bottom edge. Fibers part along the staple seam, stress focuses at the crack tip, and past a threshold the crack runs away. Pull and let go and the page rests half-torn — that damage is permanent.
- The throw carries — the freed sheet inherits your hand's direction and speed, sails up past the staples if you flicked it upward, then planes and sways down past the bottom of your screen.
- Six print styles — Shōwa Print (default), Minimal Swiss, Brutalist, Retro Office, Koyomi (traditional lunar almanac), and Huangli (Chinese almanac).
- Three desktop modes — floating above windows, as a normal window, or pinned just above the desktop icons.
- Procedural sound — the rustle, the crackle, and the rip are synthesized at tear time. No audio files ship with the app.
- Localized menu bar in English, Japanese, and Simplified Chinese.
- No network, no accounts, no telemetry. The only thing it phones is the Sparkle update feed.
Note: This is an early project (v0.1.x) open-sourced early for fun. Expect bugs and breaking changes.
