Basically to start I feel it’s easier to pre-paid for credits (just lightning sats). But I would need a way to deduct from the total paid for a specific pubkey.. as a pubkey is effectively the payer.
For example:
I pre-pay 5000 sats (linked to my pubkey)
I then pay 10/sat to publish my event to a relay - which is not an invoice, just a draw down from that pubkeys 5000 - so they now have 4990 sats pre-paid credits.
Account keeping should be virtual and not full wallets or anything complex.
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I think you're going to need a custom solution. It's easy enough to set up an LN invoicing system e.g. btcpayserver, but you will need a web interface for users to input their pubkey, validation, check whether invoice is paid, and keep a simple database of pubkey-balance records that you update as the balance is used.
I can't imagine this exists out of the box anywhere, yet...
But nostream relay must have something similar since they do tie invoices to pubkeys. I don't think they keep tabs on balances per pubkey, and they use ZBD (KYC service IIUC) instead of self hosted btcpayserver.
Thanks. I’m still hoping.
If I build custom, then I need more code and to maintain custom, etc. I was hoping it could be an easier setup for other users too.
