Lasr

A mobile wallet for Bitcoin Lightning payments built on the Nostr Wallet Connect (NWC) protocol. Designed around a payment-first interface that removes unnecessary steps from the transaction flow. Supports connecting multiple NWC-compatible wallets and switching between them.

The app is built entirely in Kotlin Multiplatform, targeting both Android and iOS from a shared codebase. No existing Nostr or NWC libraries were available for KMP at the time, so both were built from scratch as standalone SDKs (see below).