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Perl is a family high-level, general-purpose, interpreted, dynamic programming languages. The project is open-source and has been in community development for over 30 years. Perl is a highly capable language and feature rich language with over 25,000 community created extensions.

Raku is a programming language that intends to carry forward the ideals of the Perl community. The project was formerly known as Perl 6 and was renamed to Raku as of October 2019. Raku introduces many modern concepts to the historical language while keeping Perl compatibility mode as a part of the specification. Raku is developed by an enthusiastic community of volunteers, that strive to push the language forward.

PHP is a popular free and open-source general-purpose scripting language. The language was created by Danish-Canadian programmer Rasmus Lerdorf in 1994. PHP is fast, flexible and pragmatic and is especially suited to web development. It is utilised by individual developers and large corporations like facebook, where it powers backend services.

Groovy, or Apache Groovy is a object-oriented programming language for the JVM (Java Virtual Machine). Groovy share many similarities with programming languages like Python, Ruby, and Smalltalk while providing a syntax compatible with Java.

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Rebol is a lightweight, cross-platform data exchange programming language. The language is designed by Carl Sassenrath and is suited for network communications and distributed computing. Rebol's unique simplistic design makes it a productive language that is loved by its users.