I don't really think it'd be that hard, you just have to be willing to do introductory training like companies used to do. Bemoaning the pipeline is lazy. My alma mater (https://www.digipen.edu/about/history/) started as a simulation and animation company, but lacking a talent pool to hire from, they created their own by having a training program and then founding a school with Nintendo for the purpose of growing the video game programmer and 3D animation pools.

So instead of whiteboard hazing, companies like Google could open up some positions to anyone interested (not just those with relevant degrees or experience), filter with a quick IQ test (or https://en.wikipedia.org/wiki/Wonderlic_test), and if the person passes a threshold, welcome them aboard and start training. There's no pipeline issues now, the only thing that could account for a non-50% split of male and female applicants is an average difference of interest, wherever that comes from.