My config for A500 WHDOpener
kickstart_rom_file=PROGDIR:Roms/Kickstart-34.4.rom
#kickstart_key_file=PROGDIR:Roms/rom.key
filesys_nofsdb=true
# cpu settings
# chipset settings
fast_copper=true
# memory settings
# gfx settings
gfx_depth=8
show_leds=true
# sound settings (sound_output="normal" or "none")
# (sound_channels="stereo or "mono" or "mixed")
# (sound_bits="8" or "16")
sound_output=exact
sound_bits=8
sound_channels=stereo
sound_frequency=22050
# joy <n> where n is lowlevel unit in amigaos target. In SDL target it's be the enumeration order.
joyport0=mouse
joyport1=joy1
# overlay display
amiga.use_overlay=true
# screen type (public, custom or ask)
amiga.screen_type=custom
So not much changed comparing to default settings. Works great on my Powerbook.
Powerbook G4 A1106 MorphOS 3.19 & MacOSX 10.4