Atari drivers for getting the most out of the excellent TF53x accelerators on Atari.
Dallas realtime clock drivers:
TOS drivers for DS1216 / DS1315 connected to ROM or cartridge port.
Automatic screenmode switcher for ubeswitch or ET4000:
Allows starting ST-Low color games from a mono desktop if using an ubeswitch, or from an ET4000 desktop.
Lacescan support is experimental but untested.