>>17
Novena is going to be totally outpriced for an i.MX6 board. I know they bundle an ``open'' Xilinx FPGA but its toolchain isn't open sourced (AFAIK). There are (small) FPGAs with open source toolchains now, like the Lattice iCE 40 (project Icestorm)
I've never heard of the MNT Reform but it ain't cheap either, once you add the processor and the RAM.
If you're willing to spend a few grands on hardware you can also build a RISC-V desktop: https://hackaday.com/2019/02/11/building-a-risc-v-desktop/