A self-hosted version of Nsec.app has arrived!

This was long in the pipeline, and we are finally ready to show it. 

Nsec.app normally stores your keys in your browser, which is great (non-custodial), but is sometimes unreliable in handling background requests. 

With this hosted version you can run your own instance of nsec.app where keys are stored on your server and are always online! 

Here is how to launch it with Docker: https://github.com/nostrband/noauth?tab=readme-ov-file#running-hosted-version-with-docker

Basically, the code that normally lives in your browser's service worker executes on a nodejs server in this hosted version. Some important points:
- keys encrypted by password are still saved on nsec.app server, which means you can login on other devices with nsec.app
- the UI for key access is not protected in any way - whoever has access to the UI endpoint can control the app permissions (but can't access keys - those are on the server)

We hope to make Nsec.app a useful app for Umbrel and Start9 stores, please let us know what's missing or needs improvement!