Game developemnt references
Engines
Unity Linux install instructions Unreal Engine Download link for linux GODOT
Assets
Textures textures.com
Textures and Models polyhaven.com
Adobe substance 3d Community Assets substance3d.adobe.com/community-assets
Models and Animations www.mixamo.com
Models turbosquid.com
Models sketchfab.com
Models free3d.com
Articles
Advanced VR Rendering by Alex Vlachos from GDCVault
Game Design and Theory - Prototyping with graphs by Patrick Polewiak
quick protocol presentation by Robbie Shade
who is thinking about security and privacy for augmented reality from MIT Technology Review