This was a tool I created at Pokelabo. The code is proprietary but I can share the how-to video. Skip to about 2:20 for the cool parts!
Problem: We have a ton of assets that we could reuse between different games, but no good system for searching, cataloguing, and sharing them. Copying them from one Unity project to another is a huge pain. Getting them from version control (git) provides no visual feedback.
Solution: 3DAMS. It comprises: