Very, very cool! I love the fact that you used an 8086 C compiler to make the whole toolchain work.
https://www.digitalmars.com/download/freecompiler.html
Source code to the compiler/libraries is also free:
https://blogs.mentor.com/embedded/blog/2017/04/01/announcing...
Bingo. I love programming for early DOS systems (86, 286, 386) but it's difficult to find a tool-chain that runs on Linux and is able to produce DOS compatible binaries. I think OpenWatcom might but I could not get it to work correctly.
Definitely going to give this a try.