yep, quite similar concept to https://bitblik.app just with LN hold invoices (like nostr:nprofile1qydhwumn8ghj7mn0wd68ytnnv968xarjv9kxjcfwvdhk6tcpzamhxue69uhhyetvv9ujuvrcvd5xzapwvdhk6tcqypp4ydudlkw92thuqvsrasxw9zr992ls79fen2cxs9fpdt5r42vussnu67e ) instead of ecash.

here's the faq: https://github.com/bitblik/client/blob/main/assets/faq/faq_en.md