I appreciate your kind words. The reason it has all these features is because I wanted to launch this for a personal project.
Due to lack of time decided to publish it as a template. Most of the functionality, if not all runs on the backend so make sure you're on a paid plan to use the template.
Re the vault, this was my favorite part. It does use a paid plugin $25 to execute the encryption, which is a puffin built by myself and works effortlessly easy.
Enjoy your build. Should you need customization feel free to reach out