I will likely continue to try get equivalents to what's in @rules_hdl//dependency_support as granular BCR modules before trying to tackle any rules_hdl rules. That's an area I could use some support as I don't have a use case for everything that's in there. I don't think rules_hdl should care about how things are built, it should just be the rules that wrap various tools so if the logic for building the dependencies can be separated, I think the rules themselves become more standardized. Do you wanna collaborate on getting more of the dependencies into BCR?

I am mainly an fpga person. I can help with verilator/vivado sections of this as I added them. Anything outside that will have to be someone else.

You have done verilator already, so I can help/test Vivado. It's a bit annoying bc you need the expensive license.