Yes working on hobby projects. Get an FPGA kit, implement the RISC-V ISA in RTL. Use all the formal verification tools. Then move on to compliance and tape-out

Yes working on hobby projects. Get an FPGA kit, implement the RISC-V ISA in RTL. Use all the formal verification tools. Then move on to compliance and tape-out (just joking). But seriously, you'd be wasting time if you didn't do anything meaningful while trying to maintain your skills. And have to think about the motivation as well.