1+.

The other  slight concern I have re transient being in core Emacs is
that if the one outside the core moves faster, then as a user of Magit
I'd have to have both versions around ---

That said, I think transient would be wonderful to have a part of emacs
so more packages can use it

-- 

Thanks,

--Raman
♈ Id: kg:/m/0285kf1  🦮