Right now for a project im using kicad, yosys, arachne-pnr and icestorm. As n00b to this layer (most exposure was through matsci and cheme req classes), its so much fun to be able to learn along the way (and i get to save $600 instead of buying someone else fpga and peripherals and getting exactly want I want i need out of it, no more or less). Although i wish i could get on with the rest of my project, this is a fun detour.