Shelly i4 Gen3

Hello guys, i just bought a Shelly i4 Gen3 to control my buttons, and want to install EspHome on this. EspHome devices list the device Shelly i4 Gen3 | devices.esphome.io but i can’t find any guide to be able to flash EspHome, do you guys have a guide or a suggestion on how to do this?
thanks

It lists the programming interface/pinout, so it should pretty much be the same as for most/many Shelly devices. There might be a way to do it all OTA, but I’m guessing doing it via serial is what you’ll have to do.

Here’s one of the first guides that popped up with a quick Google search:

Does this device not work with home assistant’s Shelly integration? Why not simply use that?