In the future , power users will have a switch hidden in their #nostr app settings.
The switch allows you to be (next to a client) a relay.
My prediction is before 2025 is out this will be implemented in nostr:npub18m76awca3y37hkvuneavuw6pjj4525fw90necxmadrvjg0sdy6qsngq955 and nostr:npub12vkcxr0luzwp8e673v29eqjhrr7p9vqq8asav85swaepclllj09sylpugg