EngrCAD VS Kind

I have been working on a .net wrapper for opencascade (https://github.com/veggielane/EngrCAD) but opencascade interop from .net is a pain. I also fell in and out of love with SDF, as most CAM tools need BREP.

I agree with people in this thread, the world needs more CAD kernels. I also think that we need a language agnostic markup language to represent the BREP.

As a developer of a proof assistant (Kind) I'm highly interested in this line of work. Can you point me to some of these papers? And perhaps people involved in this line of work?

Kind: A modern proof language (though functional).

I have seen in languages like KindLang the definition of Array be like a Binary tree, but there is some magic there in the definition of the Array type that I don't understand yet. Also, I don't want to define the contiguous array further., it should be a literal contiguous array. The Kind "Word" type definition (arbitrary number of bytes) is closer to my contiguous array, but it has a similarly complex definition which like I said I don't understand.

Totally agree about the Blub Paradox, but there's definitely value in Self Types. See, for example, [Kind](https://github.com/Kindelia/Kind), which is able to type recursive data types by using Self Types.

For these who don't know, I'm the author of Kind and HVM. I've recently seen a criticism from an influent person in the community, who I often took as an inspiration, that made me really sad. "the guy behind this has built some impressive-sounding stuff before... it looks like his projects tend to just... go nowhere and he just abandons them and does something else?"

This is very easy with dependent types! For example, in Kind: