Looks like a great tool. I know people who have built similar things in Java for example... You are competing with Jupiter notebooks and R in some sense here. Is your market business analyst? Data scientist or something else? How expressive is your DSL and how easy is it to learn? A few other things, can I export one of the models I develop to a web server so that I could deploy it to my internal network for someone…
This DSL is javascript. It's not the easiest of languages tbh, but it's better than it used to be. If you're curious the runtime is based on www.observablehq.com, these guys run it as a notebook.
Right now, you can't export to a website, but that's the plan (for the paid version - still cheap, ha).
Export to Powerpoint / Pdf is definitely something I'll want to add in the not-too-distant future.
Connectivity to PostgreSQl, is something I am working on right now.