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Isn’t the bottleneck there the core software being proprietary? I think even verilog (which is quite old) doesn’t have a mature FOSS compiler+IDE.

There are also probably not that many hardware designers in the world?

Yosys is a very capable FOSS synthesizer and Verilator is a FOSS simulator actually used in production at ARM.

Yosys and Verilator are pretty capable if you are ok with their limitations. There is nothing akin to gcc or clang in the verilog world.