npub1y6…ta5x9 on Nostr: Will it be possible at some point to selfhost the cloud key? or at least be able to ...

Will it be possible at some point to selfhost the cloud key? or at least be able to use it with something like Nextcloud, Protonmail, etc?

I have a degoogled phone (CalyxOS) and don't have anything google related on my phone.