# [GL.MathHub.info](https://gl.mathhub.info) the Content Management Systems of MathHub.info
Before we go into details here, let us fix the context
### Context: MathHub.info - A DevOps System for Flexiformal Knowledge/Documents
MathHub.info is a comprehensive development and operations systems for flexiformal knowledge and documents. In the outset, the system focused on mathematical content - hence the name - but the scope has since widened to any kind of knowledge and documents that can be flexiformalized (formalized to a flexible degree of formality) and any kind of application that can turn machine-actionable parts of the representations into user-level services.
MathHub.info consists of three parts:
* a content management system: [GL.MathHub.info](https://gl.mathhub.info) that provides versioned content and project management facilities.
* a [build system](https://buildsystem.mathhub.info) that manages the compilation of sources
* a knowledge management server: the [MMT API](https://stexmmt.mathhub.info)
Applications include the ALeA system (Adaptive Learning Assistant) that uses semantic annotations for personalized learning support services. Archives for Flexiformal Mathematics in Math
The content of the archive is mostly in the OMDoc/MMT and sTeX (a semantic extension of LaTeX) formats. Every GIT repository is structured as a Math archive for processing by the MMT knowledge processing system.
