Journalctl has a bunch of filter options that you should take advantage of when troubleshooting. For example, journalctl -b -1 will show you only the messages from the last boot (not the current). I used this article for a quick couple of need to know commands. Enjoy! :D
Now this is a bit of magic I would like to learn. I read through PowerShell in a month of lunches a couple of years ago and it’s saved my butt a couple of times. I’m due for a re-read though. Would you have a source on where I could go to learn more about creating GUI applications in PowerShell?