Bull Bitcoin x Payjoin Tracking Issue

[spacebear21]

Bull Bitcoin Mobile

• their tracking issue Upgrade to Payjoin 1.0.0 SatoshiPortal/bullbitcoin-mobile#1446
• Upgrade to 1.0-rc with events in-memory adapter (no db migration)
  • Done in https://github.com/spacebear21/bullbitcoin-mobile/commits/upgrade-payjoin/
• Ship payjoin dart package with native assets so it can run on any platform
• Support for async callback methods
• DB migration for proper event persistence and processing

Bull Bitcoin Exchange

• Add javascript language bindings #1190
• Publish 1.0-rc to NPM
• Integrate payjoin into cypherapp (cypherapp sits on the backend and talks to their bitcoin node, etc. There are a couple of layers between the cypherapp (open-source) and the exchange proper (proprietary))
• Integrate payjoin-cypherapp into exchange