Re:Xplain – Explaining X11 for the rest of us (2017)
by cycloptic on Tuesday August 18, 2020 @11:24AM
(#24199793)
Xpra has a way to do this: https://xpra.org/trac/wiki/Clients/HTML5
There's a similar thing for Wayland too: https://github.com/udevbe/greenfield
And GTK has yet another way to do this built-in, that uses its own protocol: https://developer.gnome.org/gtk3/stable/gtk-broadway.html
(Actually now wondering whether this nonsense already exists?)