Blender SMD Tools 1.0 released news - Source Developers - Mod DB
Build Blender Source Code In Visual Studio - Part 1 - YouTube
Blender · GitHub
TUTORIAL] Blender and the Source Engine | TF2Maps.net
How to Install the Free, Open-Source, Blender 3D Animation Application
Steam Community :: Guide :: Installing Blender Source Tools in Blender 2.80
3IXAM Software stole the Blender Source Code to sell it as an "Original" product. The screenshots show the IDENTICAL file structure. More in Comments. : r/blender