Just like a did for C64, I created a simple development environment based on avelino’s files. The result is a little more complex than the C64 version but for C programming(and ASM as well). For that, I decided to use SDCC + hex2bin to create the binaries. Everything is managed by a makefile and this is primarily focused on MSXDOS application development. The code is available here.
But I ended up creating another repository, a general one, that can create ROMs, BINs and MSX-DOS applications. This is a heavily modified version of Danilo’s template used on his great MSX development workshop (videos (in pt-br) here and original template, for visual studio here. ). My repository is here and there are some explanations on how to use it on the README.md