Make your bootsectors in Assembly
Make the backbone in C++
Make your OPerating System Crap in C++, if you supper lazy you could do VB for some crap.

It's all good as long as you don't use a stupid Linux startup, because everyone
knows that it won't be yours. And it won't be secure. Good luck hope to see your operating
system when my Great, Great, Great, Grandson Graduates from College with a Phd in Law