like alby a lot, dont like the use it a lot "it easier and a lot of people use it" argument... love to see self hosted alternatives... sorry  

 Alby can be self-hosted, we encourage that! You can connect almost any type of node to the extension 

 So my nsec keys are stored local in the extension and I can acces them without internet connection? 

 Yes, your nsec is stored locally, and we can't access it. You can access it without internet connection from the same device.