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phoenix
Phoenix is a self-custodial Bitcoin wallet using Lightning to send/receive payments. (by ACINQ)
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Lightning wallets like Phoenix and Muun make it easy. Literally done in 5 minutes.
Who pays the escrow with credit cards? Merchants do. But escrow is basically costless on transactions where they don't have to intervene. You could construct a smart contract that automatically releases money to the recipient after a time lock (eg using this hypothetical opcode), and the escrow only needs to be paid if their intervention is asked for. Who would pay the fee? It's a service for the payer, so the payer should pay that fee. Payers would happily pay a little bit to get their money back i think.