NocoDB

I love the flexibility and features of NocoDB. The fact that you can connect to an existing remote DB is a game changer, IMHO. And the fact that it's completely open source and self-hosted. I'm not a fan of the UI but I understand the use of an existing UI framework to speed up the development.

lack of key features such as person field is missing and is not real-time collaborative

Cool

It's Cool and Productive,I can use this for my own sheet

This is awesome, cant wait to try.