• C

  ---

  

  A systems language used for operating systems, embedded work, and libraries.

• Git

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  Command-line helpers for repositories, remotes, tags, and work trees.

• JavaScript

  ---

  

  The language of the web, used in browsers and, with Node.js, on the server.

• Node.js

  ---

  

  JavaScript on the server, for CLIs, services, and tooling.

• Perl

  ---

  

  A text-processing language with regular expressions at its core.

• PHP

  ---

  

  A server-side language widely used for web applications.

• Python

  ---

  

  A readable general-purpose language used for scripts, tooling, and applications.

• Ruby

  ---

  

  An expressive object-oriented language, known for concise scripts and developer-friendly syntax.

• Rust

  ---

  

  A systems language focused on memory safety and reliable concurrency.

• Shell

  ---

  

  POSIX and Bourne-family shell snippets for Linux, macOS, and scripts.

• SQL

  ---

  

  The standard language for querying and shaping relational data.