...

# Make sure kernel headers are installed (nvidia-smi can fail with NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver otherwise)
# Check what driver you are using (If vendor string is nouveau, it's the open source driver. If it's mesa, it's software only)
glxinfo | grep OpenGL
# Learn about your device and the recommended driver (distro is from ubuntu, third-party from a ppa, but both originally from nvidia)
ubuntu-drivers devices
# Install the recommended driver if one hasn't already, e.g.
sudo apt install nvidia-driver-525
# Check vulkan
vkcube

...

My groot-ansible will have installed all the required packages and the basic configuration, but I still seem to be missing some steps:

• Under System Settings→Regional Settings→Language add Korean (will install a few debs)
• Run gnome-language-selector, add 한국어 and select input method fcitx
  • Ignore any .config/debconf-kde-helperrc can't write errors (longtime bug)
• If groot-ansible did not install ~/.config/autostart/fcitx.desktop log into gnome and run Startup Applications, add fcitx
  • NB: Kubuntu's System Settings→Startup & Shutdown→Add button is broken
• Log out / log in
• Under System Settings→Regional Settings→Input Method
  • Uncheck Only Show Current Language 
  • Shift Hangul across to the right
  • Under Global Config → Trigger Input Method, reset the shortcut if necessary (groot-ansible installs right alt as default, but you probably want the 'Hangul' key)
  • Set skin to dark

If there are still issues, try running from the command line: fcitx-diagnose

Themes

System Settings

• Global Theme/Look and Feel: Breeze Dark
• Plasma Style: E-Plasma
• Application Style/Application Style: Oxygen
• Application Style/Window Decoration: Ambience KDust
• Application Style/Application Style/Gnome-GTK: Breeze
• Colour: Magnesium
• Font: Noto Sans 8-9 / Hack 9
• Icons: Fekete, Optimus, Cllarity
• Workspace Behaviour/General Behaviour:
  • Single Click (Clicking Files → Opens Them)
• Workspace Behaviour/Desktop Effects
  
  • Wobbly Windows
• Workspace Behaviour/Virtual Desktops: 2x2, Desktop Cube Animation
• Shortcuts → Global Shortcuts → KWin → Switch One Desktop Down:  Ctrl-Alt-Down, .etc
• Window Management/Window Behaviour: Focus follows mouse - Mouse precedence
• Regional Settings/Spell Check: Australian

Other

• Desktop [Layout]: Right Click→Configure Desktop→Layout→Desktop
• Kate [Line Numbers]: Settings→Appearance→Borders→Show Line Numbers

Synergy (Not Tested Yet)

No deb release for focal, but you can compile the sources with tag v1.11.1-stable (bionic's synergy 1.08 won't work, qt4→qt5 transition). However, a 1.08 server (bionic) is compatible with a 1.11 client.

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