TheByteAttic, #CERBERUS2100 parts are finally in stock! CPLDs:
https://nl.mouser.com/ProductDetail/Microchip-Technology/ATF1508AS-7AX100?qs=fH4tvdCgwtMKHDTA5tqoNQ%3D%3D
And dual-ported memories:
https://nl.mouser.com/ProductDetail/972-71321LA55PPGI8
So if you were planning to make CERBERUS 2100™ units yourself, either for personal use or to sell, all parts are now available with plenty of stock.