The purpose of this article is to aid those who want to run cutting edge vim things. Vim 8.1 provides :terminal. This is BIG NEWS and has opened some pretty cool plugins such as markdown preview plugin for (neo)vim. Additionally, if you want deoplete.nvim to work properly you’ll need to compile vim against python3 anyway. The most single/main user way I’ve found to make these plugins work is to compile Vim from source.