openHAB - a vendor and technology agnostic open source automation software for your home.
webgui is available at user defined port(default is 8080 for http and 8443 for https)
http://<snap device address>:{specified http port}
https:///<snap device address>:{specified https port}
Port settings can be altered by user, refer to:
$ openhab.help
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
On Debian 9 (Stretch) and newer, snap can be installed directly from the command line: