Command OK in Raspbian, but not in the HA terminal

[grossmann (S Grossmann)]

Thanks for your interest. I followed this tutorial :

Rpi 4 installation

The only way I got SSD booting on Pi4 is to go with Raspbian Buster instead of HassOS and then install Hassio on top. The caviat is that you will still have to have sd card plugged in to boot but then everything will run of SSD usb. I got a Kingston A2000 NVMe drive (it’s pretty cheap considering the speed you get) and Shinestar adapter for it . While you are there pickup yourself this bad boy heat sink case Pi4 runs much hotter then pi3 and will throttle, and you will be back at pi3 speed …

So my HA runs in a Docker ?
If yes, do I have to install “sendip” in the Docker too ?
I tried to install it through the terminal, but didn’t get it to install…