Skia tendrils run deep and leak all over the place.
There's also a different set of work to invest in, next-generation Skia is likely to look quite different, moving much of the work on to the GPU, and this work is being researched and developed: https://github.com/linebender/vello. Some presentations about this work too: https://youtu.be/mmW_RbTyj8c https://youtu.be/OvfNipIcRiQ