C

C is a general purpose programming language that first appeared in 1972.

Erlang

Erlang is a general-purpose, concurrent, functional programming language, and a garbage-collected runtime system.

netbsd

joy-language

idris

libev

apl

kdb-q

lmdb

luajit

Lua

Lua is a lightweight, embeddable scripting language.

Neovim

Vim-fork focused on extensibility and usability.

Git

Git is the most widely used version control system.

OCaml

OCaml is an implementation of the ML language, based on the Caml Light.

prolog