Poseidon - Web App
Learn howto use or setup your own web gui for (well any kind of application) with some simple boiler plate code that the Pond Control web app can be seen as.
Poseidon - is a modular control setup for your garden pond for sensors and switches. Monitoring is done with the TICK stack (Telegraf, Influxdb, Chronograf and Kapacitor) accompanied by a python Flask webserver for the control and quick overview. All is (in my setup) running on a raspberry PI 4
For more details, build instructions, code and 3D models see my github project: https://github.com/boanjo/poseidon