Deep Singh shared a new in-depth tutorial.
The artist (also known as Index3D) shared a video guide that focuses on different transform constraints in Blender 2.8. Singh discussed different tools that can help you set up opening windows, balls, simple mechanisms, and more.
Blender features a number of these small functions that let artists simulate all kinds of behaviors, and it's always nice to get hands on such detailed beginner tutorials. You can get project files for free here. Make sure to send the author a tip to support him if you find the guide useful.