A little off topic, but may I ask how you managed to work on this full time? I am also developing a programming language, (methodscript.com if you’re curious) but I’ve never been anywhere near being able to work on it full time.
Their site mentions they worked for Google for 6 years. The stock alone from doing that would be enough to self fund for a while. They may also be getting grants or sponsors for their language or game development. Or they could be doing contract work of any kind to pay the bills.
These are all common approaches to working on your own thing full time.
Yep, I worked at Google until they silently started sunsetting all the small endeavors and funneling everyone into Ads/Cloud/Search. Back in 2014, the internal position listings were full of fascinating projects that could bring a lot of good, and looking at it now, it's pretty clear the writing is on the wall for the culture. I left late last year.
Luckily, I've saved up enough to be able to work on Vale full-time for a year or two, hoping I'll have enough sponsors by then to be able to continue. If I play my cards right, I'll be able to make Vale into a nonprofit, a la ZSF. A worthy endeavor!