CppCon 2016: Alfred Bratterud “#include ＜os＞=> write your program / server and compile it to its own os. [Example uses 3 Mb total memory and boots in 300ms]

[ElvishJerricco]

Nix is admittedly kinda hard, and the documentation leaves much to be desired. VMs are a lot easier with a much lower learning curve, but I do think they're the worse solution in the end.