This is a custom built web app, self hosted on consumer broadband. It runs on a Raspberry Pi, so it's portable and can come to outdoor events where there is no internet access.

Privacy and independence from large corporations is a core value. The email address you provide is just a login identifier — it does not have to be valid and is not confirmed. User data never leaves the Raspberry Pi; there are no ads, zero monetization, no donation links. It is completely free to use.

You can even create your own event and use the app to organize and launch your karaoke YouTube links.

Yes, this was mostly coded by agentic AI. These tools are empowering — an avenue for us to reduce ad monetization and big tech software-as-a-service in our lives.