Any IP camera with an RTSP address, such as Reolink, Hikvision, Dahua, Tapo or Amcrest, or a webcam's HLS or MJPEG address.
Your password goes to Xiaomi through this server and is not stored. The server keeps a sign-in token, encrypted.
An IP camera's RTSP address, or a webcam's HLS (.m3u8) or MJPEG address. A camera's manual or app gives its address, for example Reolink rtsp://user:password@IP:554/h264Preview_01_main, Hikvision rtsp://user:password@IP:554/Streaming/Channels/101, Tapo rtsp://user:password@IP:554/stream1. The address is kept on the server and shown only with its password and query hidden.
rtsp://user:password@IP:554/h264Preview_01_main
rtsp://user:password@IP:554/Streaming/Channels/101
rtsp://user:password@IP:554/stream1
From a server on the internet, a camera at home needs a way in, such as Tailscale on both or a forwarded port.
Entries are people walking in across the door line. Someone who leaves and comes back counts twice, and staff are counted too. Days and hours are in the server's time zone.