Ubuntu 19.04 Disco Dingo install fails

#1

The PPA repository for line suite on 19.04 is missing a release file and fails. Details below:

Following the Lime Suite for Linux instructions using PPA on:
https://wiki.myriadrf.org/Installing_Lime_Suite_on_Linux

I tried to install the repository with the command:
sudo add-apt-repository -y ppa:myriadrf/drivers

and here is the result with the error at the end:

Hit:1 http://us.archive.ubuntu.com/ubuntu disco InRelease                   
Get:2 http://us.archive.ubuntu.com/ubuntu disco-updates InRelease [97.5 kB] 
Get:3 http://security.ubuntu.com/ubuntu disco-security InRelease [97.5 kB]     
Get:4 http://us.archive.ubuntu.com/ubuntu disco-backports InRelease [88.8 kB]  
Get:5 http://us.archive.ubuntu.com/ubuntu disco-updates/main amd64 Packages [197 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu disco-updates/main i386 Packages [170 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu disco-updates/universe i386 Packages [231 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu disco-updates/universe amd64 Packages [233 kB]
Ign:9 http://ppa.launchpad.net/myriadrf/drivers/ubuntu disco InRelease         
Err:10 http://ppa.launchpad.net/myriadrf/drivers/ubuntu disco Release
  404  Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/myriadrf/drivers/ubuntu disco Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
#2

Why use a non-LTS release, Disco Dingo is a short term support release and will only be supported, for a total of six months, until January 2020, and then no more updates. I’d pick Ubuntu 18.04.2 LTS Bionic Beaver, if I was installing Ubuntu on a machine right now.