Nostrbridge is currently developing a relay server that currently only supports events of kind=10010, which are temporary events. The cache time for these events is 2 minutes. Subscribers subscribe to these events using the #e tag, and publishers publish them using the e tag in their event tags. Both parties are associated through the id, which is essentially a pre-agreed identifier exchanged through other channels. This functionality serves as a forwarding mechanism, with no storage or archiving. In the future, it is intended to be used as a "message in a bottle" feature.