Brink

Gen Z doesn't email friends. It emails the people who hold something over them, so I built the inbox that sorts by what ignoring it costs you.

Every mail client sorts your inbox by arrival time, which is the one ordering that has nothing to do with what any of it costs. Recruiters, professors, landlords and brand deals all queue behind whatever arrived most recently. Brink sorts by consequence instead. The offer that expires Thursday sits above the newsletter that landed this morning, and the thread that has gone cold sinks out of the way.

The atomic unit is a seal: a ring with the sender's initials inside and a stroke that depletes as the deadline closes. Urgency reads by how much of the ring is spent rather than by colour, so the interface stays monochrome and the only colour on screen comes from people's faces. The AI reads, it never ghostwrites. It gives you the ask, the real deadline, and what silence costs, in three lines above a thread you were avoiding.

It is a service, not a client bolted onto Gmail. You get an address, with the subdomain picked from a curated set, and the accent is sampled from whatever photo sits behind the rail. Choosing a background colours the product rather than papering over it.