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@@ -23,10 +23,11 @@ stays behind basic auth at <https://prism.dax.ist>; pathways is public.
- Each path is an ordered cycle (by taken date, then id): walking "grey" goes
grey → grey → … and wraps around. Assignment is deterministic, so revisiting
a photo always offers the same four exits.
-- If a step lands on a photo already placed in the mosaic, focus just jumps to
- its existing tile — the mosaic never holds two copies. If it lands on a grid
- cell already occupied by a *different* photo, the new photo keeps stepping in
- that direction until it finds a free cell, so nothing is ever covered up.
+- Movement is spatial: pressing a direction lands you on whatever photo already
+ occupies that cell — you walk through photos you've placed before rather than
+ over them. New photos are only added when you step into a genuinely empty
+ cell. If the path's next photo is already placed elsewhere, focus jumps to
+ it, so the mosaic never holds two copies of a photo.
## Run it