FPGA place and route tool for Lattice ECP5 - with GUI

 nextpnr is a FPGA place and route tool. Its purpose is to turn a
 topological description of digital hardware produced by an FPGA logic
 synthesis tool such as yosys into an elaborate map of connections between
 the hardwired functional units available inside the FPGA's fabric.
 .
 In order to verify the fully implemented design for proper operation at
 high speed timing-analysis of the design is also supported.
 .
 nextpnr-ecp5 supports the Lattice ECP5 series of FPGAs.
 .
 This package supports both the GUI and command-line interfaces. A slimmer
 command-line only version is available in the nextpnr-ecp5 package.