Driftya needed a way to let someone invite one person into their Drift Circle.

That sounds simple, but the invite changes more than one screen. A Drift Circle is used for small relationship-scoped experiences. It can make someone eligible to receive future arrivals when the creator chooses Drift Circle routing, and it can also make short notes visible inside Between Us.

That means the invite cannot behave like a normal public profile link.

If the same link can be used again and again, it becomes less personal. It can be posted somewhere, passed around, or found later by people it was never meant for. If accepting the link creates direct delivery, it becomes too close to messaging. If it creates a public list of people, it becomes too close to a follower graph.

The invite is meant to do something smaller.

It creates eligibility, not obligation. After someone accepts, they may receive a future arrival through Drift Circle routing, but only when the system chooses them. The creator does not pick them directly, and the invite does not guarantee that a note will arrive. It simply makes that person part of the possible Drift Circle path.

It also affects Between Us, but not as an open room or a normal message board. Between Us is a small shared-note surface inside My Notes. It only shows recent notes from people connected through Drifted With. People can respond by adding a new short note after someone else, but messages do not become threads. There are no likes, rankings, infinite scroll, activity notifications, or posting twice in a row.

That is why the invite link only works once.

A user can have one active invite link. They can share it with one person. When that person accepts, the link is consumed and cannot be used again. If the user regenerates the link, the old one stops working immediately. The invite token is random, stored as a hash, and never reused.

This makes the link feel closer to a small invitation than a public doorway. It can help someone bring one person into their Drift Circle, but it does not turn Driftya into direct messages, referrals, groups, or follower mechanics.

One link.
One person.
One possible future arrival.
One small way into Between Us.