He is using server side programming environment. Linux won the servers. How hard task is there? $ pacman -S nodejs python-pip ruby also $ pacman -S

He is using server side programming environment. Linux won the servers. How hard task is there? $ pacman -S nodejs python-pip ruby also $ pacman -S ghc lua erlang elixir rust gcc clang postgresql docker podman --- But seriously. There is no market. Browser is a javascript runtime, it is easy to make self-contained HTML like self-contained SWF before. Nodejs is v8 running on the server. In theory it should be possible to emulate in the browser. In practice someone has to implement that first.