RACE stands for "Run Anything in Canvas Environment", i.e. it gives you infinite canvas(es) on which you can run and scale multiple terminals. I use it to drive development across many projects without getting lost. Lately I've been asked and it turns out I have 120 terminals with 70 agents sessions opened (though this is probably like 30 different projects if not more).
See a YT video how it works with agents: https://www.youtube.com/watch?v=8AL50dHCznA
I built it because I kept getting lost in terminals, it's not the case anymore (mostly ;-))