I am building a bartop using a RasPi 3 and an IPAC2 in keyboard mode (as I need it to support two players). I'm using an old 4:3 LCD screen via a HDMI-VGA adapter.
I was initially going to do this in Recalbox but am now looking at Batocera due to Recalbox not being actively maintained.
The difficulty I'm facing however is that EmulationStation seems to be setup almost exclusively for gamepads, making setup with the IPAC2 keyboard encoder difficult. While I do plan on having some USB ports on the bartop exposed for plugging in controllers for consoles, I am primarily going to be using this for MAME, so would like to easily navigate the UI using the joystick and buttons connected to the IPAC2.
Has anyone had any experience setting up an IPAC2 as the primary interface on Recalbox or Batocera? Any advice or tips?