Someone figured out a way to install rokuphp (the addon for the H264 streams) to Nginx, I'm quoting his message:
Thanks for the IP Camera app -- I've found it very useful on our Roku.
I wanted to setup the HLS transcoding (I wanted better video quality and I also have a camera that does h.264, but no jpeg -- so couldn't see it in your app).
However, instead of running it on a dedicated raspberry pi, I wanted to run it on my existing server (which already runs Nginx and pihole).
I made notes on how to set this up, here's a link in case it is of any interest to you (feel free to re-publish or use in any way if you want).
See the file README-nginx.md in https://github.com/mikecarlton/rokuphp
