However, having said all that. My personal approach can be found here: https://github.com/yrrapt/amsat_txrx_ic/blob/master/env/Makefile https://github.com/yrrapt/analogue_ic_template

Thanks! In particular, the make files for the various necessary tools are helpful. For now, I got https://github.com/efabless/caravel_user_project_analog and https://github.com/efabless/caravel_user_project to build and

make precheck

with the enclosed sample projects. That's probably a good starting point.