Ask HN: Skills to learn at big tech job

Hello HN! I'm working on a project that I want to scale and turn into a startup. While I do that though, I continue to work as a PM at a FAANG to pay the bills.

Leaving my job is not possible at this stage, so I'm wondering if people have any advice on how to make the most of my time here.

I'm non-technical, so are there any non-technical founder skills that can be learnt on the job? Is being a good PM enough prep for being a non-technical founder? And what about learning how to code? Is it wise to change roles and become a SWE? I'd think coding on the job would help with scaling my project when the time comes, but I don't enjoy coding as much as I'd like to.