Programming langugaes make it to the mainstream due to having some killer app, or having really big corporate sponsorship, or being a native language of some bi

Programming langugaes make it to the mainstream due to having some killer app, or having really big corporate sponsorship, or being a native language of some big platform. So your parameters make this is a bit like the paperclip problem. If your target is to make Lisp the #1 popular language and to do this by writing Lisp code, one way would be to create a product that makes enough money to become the biggest tech company, keep control of the it, and then task management to surpass or take down competing tech platforms and languages.