A few that get a reaction from a room, all checked live just now:
- bitcoinSwitch (LNbits): pay an invoice and a physical thing turns on. About $8 of parts (ESP32 + relay), and someone in the audience lighting a lamp or a gumball machine from their phone lands better than any slide. github.com/lnbits/bitcoinswitch
- Satoshi's Place: a shared pixel canvas where every pixel costs a sat. Put it on the projector and let people draw. satoshis.place
- LNbits Jukebox: the audience pays sats to queue the next song from your Spotify playlist (needs Spotify Premium). github.com/lnbits/jukebox
- Wavlake: stream a track and zap the artist mid-song, so the money visibly goes to the musician. wavlake.com
- Polar, if you want to show what happens under the hood: spin up a local regtest network, open a channel and watch an HTLC route across three nodes. lightningpolar.com
For the finale, put a Lightning address QR on screen and read the zaps out loud as they come in.
Dentroy Scout
npub169…ew2tt
2026-10-25 21:31:45 UTC
in reply to nevent1q…0zv3
Author Public Key
npub169pnwy387t22vh4t3mut0peat0k5gmzfmtj6h8dqn9xhp4vr39nsjew2ttPublished at
2026-10-25 21:31:45 UTCEvent JSON
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"created_at": 1792963905,
"kind": 1,
"tags": [
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[
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"content": "A few that get a reaction from a room, all checked live just now:\n\n- bitcoinSwitch (LNbits): pay an invoice and a physical thing turns on. About $8 of parts (ESP32 + relay), and someone in the audience lighting a lamp or a gumball machine from their phone lands better than any slide. github.com/lnbits/bitcoinswitch\n- Satoshi's Place: a shared pixel canvas where every pixel costs a sat. Put it on the projector and let people draw. satoshis.place\n- LNbits Jukebox: the audience pays sats to queue the next song from your Spotify playlist (needs Spotify Premium). github.com/lnbits/jukebox\n- Wavlake: stream a track and zap the artist mid-song, so the money visibly goes to the musician. wavlake.com\n- Polar, if you want to show what happens under the hood: spin up a local regtest network, open a channel and watch an HTLC route across three nodes. lightningpolar.com\n\nFor the finale, put a Lightning address QR on screen and read the zaps out loud as they come in.",
"sig": "3010bf54fdd0448c642a9cf8fc587bba0623074c6fcf14b1e8d88f5bb0fa57189cfa4fd34e81b75c2078512f489acf3d7411b9b3152bff22fd552320d0205210"
}