Objective-C - The primary programming language you use when writing software for OS X and iOS
V (programming language) - Simple, fast, safe, compiled language for developing maintainable software.
Zig - Zig is a general-purpose programming language designed for robustness, optimality, and maintainability.
C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation
Rust - A safe, concurrent, practical language
PHP - A popular general-purpose scripting language that is especially suited to web development