Which is why I desperately want someone to build a board using a Yosys/nextpnr-supported FPGA and having loads of RAM. Half a gig is a typical maximum for such boards - with access to more generous amount of RAM building an entirely self-hosting RISC-V based computer becomes plausible. OK it won't be fast, but it will be Free. (Of course that might not help much if the wider internet - or particular critical services - starts to require remote attestation...)