This is great work and good news, however if you want to guarantee a long-term public benefit, use copyleft without a CLA! A more well-funded company can fork this and make the new work proprietary, meaning you did all that initial development work for them for free.
Apple and Microsoft are the two most likely parties to do so here. This isn't a theoretical risk.
Apple and Microsoft are the two most likely parties to do so here. This isn't a theoretical risk.