nextpnr-generic 0.0~git20210102.9b96280-1 (riscv64 binary) in ubuntu hirsute

 nextpnr aims to be a vendor neutral, timing driven, FOSS FPGA place and route
 tool.
 .
 nextpnr-generic allows running placement and routing for arbitrary custom
 architectures. It is more experimental than nextpnr-ice40.