Agilex 3 is one of the two FPGA families the SoC is built for. Nothing is forked for it: the RTL that synthesises here is the RTL that goes through OpenLane, so a bug caught on the board is a bug in the design rather than in an FPGA-only variant of it.
Results
Agilex 3 is the fastest of the three targets: the design closes at 130 MHz and draws 84.2 mW, using 8,015 ALMs and 7,217 registers. The demo is implemented and running on hardware.