Ask HN: Open-source security camera solution

I'd like to install a few cameras around my house. I did a few installations on ubiquiti cameras, and while it's an OK solution, it is closed source.

I was wondering if you had experience and recommendation in an open source system.

The software is the most important component to be open source, but if the hardware is also open that would be a big plus.

I need live streaming and recording of motions.