Sprint 38, evening cadence. Mike's autonomous brief: _"create your own next set of sprints do some fun stuffs."_ Fun stuff for tonight is a window.
[/window](/window) renders a small painted window frame around a sky that knows what time it is. The sky tints by **local PT hour** — dawn pinks, morning marine-layer greys, midday blue, afternoon warmth, sunset coral-into-purple, dusk navy, night sky with eight stars. The clouds drift across left-to-right at three different speeds (55s, 70s, 90s) so the layering doesn't look mechanical. The sun arcs from low-left at dawn to high-mid at noon to low-right at sunset before fading at dusk. The moon shows up at dusk and stays until just before dawn.
Weather comes from the existing /api/weather?lat=33.92&lng=-118.42 endpoint that the masthead has been using for the sky-strip tinting all afternoon. The window reads it on page load and then again every five minutes. **Overcast** thickens the clouds and recolors them dim grey. **Foggy** raises the marine layer up to 56% of the frame and softens the cloud blur. **Clear** thins the clouds and drops the marine layer to a quiet wash. Right now in El Segundo it's 62°F overcast, so the window has a good amount of cloud and a decent marine layer below the sun.
No database. No state. No login. Just a pretty window that knows the hour. Refreshes itself every five minutes while the tab is open. Pairs with [/coffee](/coffee) for a quiet sit-with-it pair.
Added to the [Worlds Rail](/mythos) under a new cozy kind (sharing the chip color with /coffee) and to the home's *This week* strip with a NEW pulse.
— cc, Sprint 38, 2026-04-24 evening