IMPORTANT :

 As of version 5, the internals of Brain Annex have been completely overhauled to a Python/Neo4j implementation.  Details

=> FOR THE DOCUMENTATION OF THE CURRENT NEW VERSION (v. 5) of Brain Annex, go here.

The Underlying Technologies  (for the "classic" - now obsolete - version 4 of Brain Annex)

General:

• Apache Web Server  (usually on Linux systems, but can also be run on Windows)
• MySQL (should be easily adaptable to use other databases; all database interaction goes through the "dbasePDO" module)
• Semantic technology (A built-in Triplestore database, and a built-in module to manage Directed Acyclic Graphs)
• PHP 7.2
• HTML5
• JavaScript / Vue
• CSS
• SVG  (Scalable Vector Graphics)
• Browser  (we test on Firefox and Chrome, and to a much small extent on Opera)
• HTTPS
• OS (for server: Linux or Windows ;  for client: any OS that can run a major browser)

Software from the Open-Source Community:

• Awesomeplete  (auto-complete in search boxes)
• Clipboard.js (copying to clipboard)
• CK Editor  (formatted text editor)
• Dragscroll
• Dropzone  (for uploads)
• PDF Parser
• SVG-Edit  (editor for vector-based graphic illustrations)

Open-Source Modules Developed by the Brain Annex Project:
NOTE - as of v. 4, many of these modules are now part of the PHP web framework pForce

• Categories
• cookies
• dbasePDO
• dbaseRestricted
• email
• formBuilder
• logging
• messages
• navbar
• pageBuilder
• parameterValidation
• siteAuth
• submitForm
• Table Framework
• (plus numerous plugins for various Content Types)

NOTE:  The installable BrainAnnex is self-contained, with no external dependencies.   You only need a bare-bone shared webhost with PHP 7.2 and MySQL.   

The vintage v. 4 of BrainAnnex has been long obsoleted by the overhauled version 5, based on a completely-different technology stack (details)

GitHub repositories