You can get lattice FPGAs for a few dollars each from distributors. Zynq&#x27;s in volume are reportedly as $15&#x2F;each. Tools are free.<p>If cost is the main concern, then how low do you need to go?<p>An open FPGA arhitecture is a good thing, but it will require something akin to the RISC-V effort to make it happen. (ie major DARPA&#x2F;NSF, academic, industry backing to bootstrap). Let&#x27;s see what happens...