The theme
In a small dome in the Jura, you find the photographic plates of Hélène Vasseur, an amateur astronomer: each has a line in her hand, never a date. You wind the sky back to each one, from last night to twelve thousand years ago, when Vega stood at the pole. At the end, a ninth blank plate, “Tonight. For you.”: one golden reel brings the whole sky forward to this Tuesday, 20 October 2026, 9:14 pm, and the dome opens wide on the gibbous Moon.
The mechanics
You turn reels of time (tracing circles around them, swiping, with the wheel or the arrow keys): hours, then days, years and millennia, one more at each stage, with inertia. When every star sits in its ghost circle, the needle reaches “expose” and you expose for two seconds. Exposing too early or under a cloud ruins a plate (the first one is free); three blank plates per stage, and when they run out, Hélène brings the sky close to her night: only the hours are left. A lamp lights on each reel whose scale is right, and a « Help me » button tells the next step (on the third press, Hélène brings the sky back).
Palette
Prussian-blue sky #0e2433 lightening to #1d4a5c, stars #fff4d8, Moon #efe6cc, silvered glass plates #d9dccf with ink dots #1a1d22, brass #c9a04a and copper #b8733a on dark wood #2a1d16, safelight red #c2362b, slate clouds #4a5560, gold #ffd36b. Instrument Serif, Reenie Beanie for Hélène's hand, IBM Plex Mono for the counter. Patient, mechanical, full of wonder.