The ZX-Uno core is not self-explanatory and you need a specifically prepared SD card to run it. You need to work through the Getting Started tutorial.
This MEGA65 Core is based on Miguel Angel Rodriguez Jodar's great ZX-Uno. It was initially ported to the MEGA65 in 2020/21 by sy2002 and then ported to the MiSTer2MEGA65 framework in 2023 by sy2002 and MJoergen.
ZX-Uno @ MEGA65 is licensed under GPL v3, see AUTHORS for more details.
Special thanks to Miguel for creating ZX Uno and to Andrew Owen, Detlef Hastik (Deft) and Paul Gardner-Stephen for supporting us during our porting adventure.
Please head to the Getting Started tutorial, you will find all relevant information there.