Actually, that should be ABANDONED.

I also tried Peppermint-Devuan and here is my post to them:

Wonderful birthday present - lost internet for most of the day!  OK!  I now have a new carrier.

I used Synaptic to dl firmware-realtech, finally found where Synaptic placed it and put it on a USB stick, fired up the Peppermint (Devonian) Installer, attempted to install the firmware - deb told me it was already installed!

When I try to add WiFi, whether through Add WiFi (only Ethernet is active) or clicking on my WiFi network, Ohh! My hand drawn pop up got edited out of my OP - something about not able to add.  Here it is from Dev1 Galay:

Connection add failed
failure adding connection settings plugin does not support adding 
connections
		[ Close ]

( The Pop-Up title is different on Pep but I was getting the same thing with installation from Dev-1.)  Also, the installation screen will frequently go to a black screen  and I have to Power Off and start over.

Unfortunately, the installers no longer have a memory check option.

Unfortunately, I guess I'll have to give up Devuan and stick with PeppermentOS on that machine.

Bruce