Bitcoin 2026 · Open Source Stage

Turning Stages
into Circular
Economies

Francis on stage with Lightning network visualization

Living the dream.
But making a living?

  • Built Chain Duel, played at events worldwide.
  • Conferences covered flights. Sponsors covered prizes.
  • Thousands of hours. No income.

Across the space — same passion, same struggle.

Roger9000 performing at Bitcoin after-party

A Bitcoin musician.
Performing for free.

Funding his own flights. His own accommodation.
Using the sats he had saved. No guarantees.

That level of commitment felt almost unreal.

Outdoor Bitcoin performance

Sovereign Engineering.
Madeira. Freedom tech.

We built PubPay: Nostr + Lightning for public payments.
Invited Roger to perform. No budget to pay him.

What if we could use this technology to directly support
people like Roger? PubPay Live was born.

PubPay Live audience zapping

What is
PubPay Live?

  • Recipient publishes post on Nostr
  • QR code displayed on screen
  • Supporter scans and zaps — no account needed
  • Sats sent instantly to chosen Lightning address

Simple. Permissionless.
No middlemen.

PubPay Live leaderboard on stage

What this does
to a room

For the audience
  • You stop being passive — zap the moment something hits you
  • Your name on the big screen, your message on Nostr forever
For the speaker
  • Feel what lands and what doesn't, in real time
  • Someone watching months later can still zap you
  • No platform can delete it or demonetize you

Value for Value.

Nostr Lounge at Bitcoin conference

From one after-party
to a movement.

Roger kept using it. Other musicians tried it.
We partnered with HRF to support activists.
Bitcoin Amsterdam, BCC8333 Barcelona, Satsconf.

What if speakers could be rewarded live during their talks?

Backstage Multi Live management

The hard part wasn't technical.

  • Contacting every speaker
  • Helping them set up Nostr
  • Ensuring they had Lightning addresses
  • Collecting correct post IDs

But it worked.

For a moment, the line between
speaker and audience disappeared.

PubPay Live leaderboard on conference stage

Real sats.
Real people.

47
PubPay Lives
419
Zaps
325k
Sats to speakers

Every speaker onboarded to Nostr.
Nostr featured on the official livestream.
This isn't theory. This is Bitcoin being used as money.

This stage has
PubPay Live running.

Scan the QR. Zap me anything.
One sat. A thousand sats.
Or try to take the top spot on the leaderboard.

Let's show this room what a circular economy feels like.

Thank you

Grateful to
build with you.

francismars.com

1 / 11
1 / 11
Speaker Notes — Slide 1 / 11
120 wpm