That is something I want to know too. Do these various "wormhole" apps use any common protocol between them or do they just all use the same words and branding for different things?
Magic Wormhole is the first, and is its own thing. It's called "Magic" Wormhole for a reason: it tends to blow people away the first time they use it. So lots of people have copied the UX, and some of them have copied the name as well. What you should use is Magic Wormhole itself, or, if you want a non-Python runtime for some reason, wormhole-william.
> if you want a non-Python runtime for some reason [...]
Magic Wormhole project has its own alternate implementation https://github.com/magic-wormhole/magic-wormhole.rs, which is also used by delightfully designed GNOME and Android apps; [Warp](https://apps.gnome.org/Warp/), and [Wormhole](https://play.google.com/store/apps/details?id=eu.heili.wormh...), respectively.