(24-01-2020, 05:43 AM)zge Wrote: Are you sure? I've played around with Plan 9 a few times, but didn't see a way to trivially combine various existing GUI tools into new ones. I guess you could start a new rio session in a terminal, but I don't think that's really what eduarch42 means (?).

Start a plan9 session, you end-up in a raw terminal without graphical ability.

Start acme, it opens as the root window.

Instead of acme, start rio, you can now open new windows in which start other programs, including acme.

That is how you can combine programs onto others on Plan9.

X11 has XEmbed [1], and tabbed [2] is an example that uses it for providing a "tab" feature to surf, st, and more.

[1]: https://en.wikipedia.org/wiki/XEmbed
[2]: http://tools.suckless.org/tabbed/