... runs on DietPi with Lesp (Nginx+SQLite+PHP).
The Grasshopper application has been tested on Lesp and LAMP+SQLite. (Both documented in following chapters).
The only requirement is that SQLite is used as a database. You can read more about this in following chapters.
Choice of MyHome Gateway
Grasshopper can communicate not only through the official Bticino Gateways (eg. MH20x / F452 / F454) but also network-connected touchscreens can be used (eg. 3,5" / 10")