I would like to also add if your curious about more modern FPGA bit-streams there are these two projects which reverse-engineered bit streams for open source sy

I would like to also add if your curious about more modern FPGA bit-streams there are these two projects which reverse-engineered bit streams for open source synthesis. https://github.com/SymbiFlow/prjxray https://github.com/SymbiFlow/prjxray https://github.com/SymbiFlow/icestorm https://github.com/SymbiFlow/icestorm