IDE support for NRF52840

I recently tried to add my itsybitsy NRF52840 from Adafruit to my Arduino IDE.

When final install step, I get the following message:
"Tool nrfprog is not available for your operating system"
I am running Debian on Raswpberry Pi 4B. IS there any way to get support for this chip in Arduino? On the Nordic site they claim only x86 support, but others have claimed there is support for Unix, I think third party. Is there any way for Arduino to add support for this chip?

It would open up a bit of flexibility for Arduino, as it contains a great BLE module, and is very cost effective. I use my Pi 4B for everything right now and do not want to change. Is this board supported through the web browser version?

Roger Ayotte

Don't see it in the "supported boards" for the web section paid or otherwise.

If there is an external core and you are on the latest IDE then I see no reason for using the additional URL's method not to work.

(disclaimer I am not a major linux user)