This is the source code for the FleaFPGA-JTAG utility used to program the MachXO2 FPGA internal configuration flash or SRAM on http://Fleasystems.com FleaFPGA boards (via USB FTDI FT231x JTAG).
For a full tutorial, please see the FleaFPGA Quickstart Guide for your FleaFPGA board.
Update: Pre-built Windows installer now present here: