seen: 2026-10-30, mosaic, todarch cube, its bottom nav on a phone. selim: "you should not use the word cube while you're using the cube design… that was one of the mistakes we did in anlat. … it should be to-dos." and: "this is a to-do application. it's not a cube application. it's just using the idea of the cube design."
picture: a to-do on a phone, with the "cube" tab at the bottom.
breaks: 28 (everything is theirs: the person keeps to-dos, not cubes) and the lesson anlat wrote down as its R49, not yet a principle here: the cube is the mechanism, never what the app talks about.
why it feels wrong: the tab named the way the app is built, not what the person keeps in it. "cube" beside "to-dos" puts the mechanism and the thing at one level, as if the cube were a second thing to visit. it is the same slip anlat made with "küp" and "parçalar" before R49.
how it follows (built the same evening, lang-app-fe#105/#106): the one way in is called to-dos. the sub-app's own name ("todarch cube", a working name) and its address (/todarch-cube/cube) still carry the word; both wait for selim's name for it.
status: fixed in the tabs; the name and the address wait for selim.