recently I read the message that it is possible to run on Mac mini (as I understand, old x86 mac mini)
Yes, I have gotten it to work on 64-bit x86 Mac mini (probably a bit more recent than what you describe but I can’t check exact model now as I’m traveling).
I had 2 spare mac mini and one of them could be used for such an experiments.
Is it possible to run Scuplt of last version on x86 unibody mac mini? if yes - any build/setup instruction?
If you are lucky, it will boot directly, on either machine. Likely it will be very slow - one should immediately edit the config/managed/runtime to eliminate the ps2 driver (comment it out or delete). If it won’t boot, it’s probably the graphics driver or ps2 driver. One can permanently disable ps2 by editing the corresponding config file and building a custom image. To force fallback to the fb_boot_drv one has to edit the driver_manager and recompile, unfortunately.
Can I use bt keyboard/mouse or I should use wired usb ones?
I haven’t even tried BlueTooth, perhaps the Genode developers can say more about the status of BlueTooth on Genome?
which one better to use for experiments (from compatibility point of view - while I prefer to use older one):
Either one I imagine, but the more recent is probably closer to what worked for me.
Hope it helps and eager to hear if you get it going.
CP