Engineering-Blog
Warum das Produkt so gebaut ist, wie es ist
19. August 2026
Stability, Capability, Participation, Guidance
The product started with a hard question: how do you reduce avoidable conflict in shared housing before it erupts into relocations, mediation time and stress?
15. August 2026
Everyone thinks they do more than half
Ross and Sicoly asked married couples, separately, what proportion of the housework each of them did. Then they added the two answers together. The totals came out well over 100%.
14. August 2026
An operating system for living together
Housing is scarce in every city that matters, and the family structures that used to absorb that scarcity are thinner than they were. The result is a quiet demographic fact: more and more people share territory with people they are not related to — a room in student housing, an apartment in a WG, a floor in asylum accommodation, a building, a subdivision.
14. August 2026
The Hausordnung is now data
Every AOZ resident signs a two-page paper Hausordnung on moving in. Until today, the app's org-level rule catalog was a plausible approximation of it — written from domain knowledge, not from the document. Approximation is the wrong relationship for a rule book to have with reality. Three examples of what "plausible" got wrong: