I haven't found a recent topic for this, so I thought I'd go ahead and ask it for anyone having this issue currently. I build my recalbox Raspberry Pi 4 on thursday, but cannot find where I am to put bios. When googling it, I only find people saying its in "/recalbox/share/bios" but I can't find this. I can't even find /recalbox/share. When I put that into my browser, I just get a 404 error. I am able to play any systems that already have the bios in them, but I can't seem to find where to put bios for other systems.