Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
JavaScript - Lightweight, interpreted, object-oriented language with first-class functions
Wiki.js - An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
TiddlyWiki - a non-linear personal web notebook