Nerd Stats
Nerd Stats
Section titled “Nerd Stats”This is a hidden builder page. It is not part of the normal user journey.
What’s in Flash’s stack?
Section titled “What’s in Flash’s stack?”BreezSDK Spark
Section titled “BreezSDK Spark”Flash’s Bitcoin Wallet uses BreezSDK Spark for managed Lightning flows and unclaimed deposit handling.
- Fast Bitcoin send and receive
- Deposit tracking
- Wallet recovery flow support
Learn more: Spark / Breez integration
BTCPay Server (Legacy)
Section titled “BTCPay Server (Legacy)”BTCPay is part of Flash history, not the modern user flow.
- Legacy payments / card-era integrations
- Kept here for reference only
Learn more: BTCPay Server docs
Cashu / eCash
Section titled “Cashu / eCash”Cashu represents a future direction for Flash: privacy-preserving, offline-capable money movement with NFC card support.
This is not the Cash Wallet. The Cash Wallet is an IBEX USD wallet. Cashu is a separate protocol and product direction.
Why it matters
Section titled “Why it matters”- offline payments and tap-to-pay experiences
- better privacy properties than always-online wallet flows
- a path toward NFC cards that can work even when connectivity is poor
- a more flexible future for small-value payments and merchant acceptance
Learn more
Section titled “Learn more”Nostr Protocol
Section titled “Nostr Protocol”Flash Chat uses Nostr-based messaging technology for chat and support.
- Private chat inside Flash
- Support group access
- Contact messaging
Learn more: Nostr
Helpful Flash pages
Section titled “Helpful Flash pages”Cashu is a future-looking protocol page. It does not describe the current Cash Wallet, which is an IBEX USD wallet.