I just found about intentional software and their language workbench work yesterday. Very secretive indeed, but I found some interesting material. Here's a list in case someone finds these useful: • The story: https://martinfowler.com/bliki/IntentionalSoftware.html & https://medium.com/@dslmeinte/intentional-software-bought-by-microsoft-2606e6eb1106 (ex employee comment in the comments) • (Only?) public demo of their product: http://web.archive.org/web/20090717105131/http://msdn.microsoft.com/en-us/oslo/dd727740.aspx • Apparently Simonyi's team's work while still at Microsoft: & • Simonyi's talk(s). These are basically the same, I liked the first one maybe a bit better: & • Their paper (I found this a good read. Should be interesting to anyone interested in projectional editing, generative programming, model driven development, language driven development etc): https://www.researchgate.net/publication/213882389_Intentional_software • Simonyi's paper while still at Microsoft: http://viega.org/cs6373/papers/ip.pdf