need permissions to access usb

[mMerlin]

The installation should at least report (if it can not automatically handle) that linux (at least Fedora) users need to be in the dialout group to access the USB devices, and upload to the Arduino boards.

[A6GibKm]

I am using: https://askubuntu.com/a/680328 as a workaround, is this worse than adding the user to the dialout group?

[mMerlin]

I can not evaluate whether that is better or not. The point of the original report here, was that the user should be informed of any extra requirements to get it working. If those requirements are not being handled directly by the install.

[A6GibKm]

Not an ideal solution, but added a README with two possible ways of giving USB permissions. Feel free to PR a better solution.

[hadess]

See flatpak/xdg-desktop-portal#227