I have uploaded Xvesa for dCore as an available import. The changes to fit it in take place at the extension level, so users of standard dCore/Xorg have no new code that needs to be tested or can cause issue with them. This is the small original Xvesa from the beginning of Tinycore, I will also upload the larger one from Xorg-7.1 at a later time.
import Xvesa
import Xprogs
You will need a window manager or desktop environment as well. xsetup.sh can be used to configure Xvesa. If you have Xorg installed, just delete /usr/local/bin/Xvesa and run xsetup.sh to return to Xorg.