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Janet

Janet is a functional and imperative programming language designed to be easy to embed and extend. It is written in the C programming language and its syntax draws inspiration from Lisp, Clojure, Lua, and JavaScript. Janet can manipulate data at runtime without requiring compilation thanks to its support for macros, just-in-time (JIT) compilation capabilities provided by the Janet VM. The language provides simple concurrency primitives like OS threads with shared memory or message passing over channels. Janet's standard library helps developers perform tasks such as file I/O, creating network servers/clients, handling configuration files, or generating web content through server-side scripting. Being open-source under the MIT license encourages community contributions and makes it a versatile tool for many kinds of projects—from small utility scripts to large-scale applications in fields like gaming or web development where performance-intensive operations are necessary alongside expressive code manipulation features like first-class functions or pattern matching constructs against deeply nested data structures.

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