Jekyll is a static site generator. You give it text written in your favorite markup language and it uses layouts to create a static website. You can tweak how you want the site URLs to look, what data gets displayed on the site, and more.
Wiki.js is the most powerful and extensible open-source Wiki software. It runs on Node.js and is written in JavaScript. Wiki.js is a modern, lightweight, and powerful wiki app.
Dolibarr is an open-source ERP CRM software suite. It includes all the important features of an ERP CRM suite. It is used by millions of users worldwide.