Interesting to compare various projects I've been involved in - https://star-history.t9t.io/#google/skywater-pdk&SymbiFlow/prjxray&enjoy-digital/litex&timvideos/litex-buildenv&verilog-to-routing/vtr-verilog-to-routing&im-tomu/fomu-workshop&im-tomu/fomu-hardware&SpinalHDL/VexRISCV