Please help! Im unable to get systemd service to start on boot.

The goal is to have my screen rotate to normal and start Barrier (keyboard and mouse share software) on boot up.

So, i have a laptop laying on top of my desktop monitor that i use kinda like a second monitor. But it boots up with the display sideways and i have to login to be able to use mouse and keyboard from my desktop.

I have tried everything to get a systemd service to handle those problems. But no luck, i think the service isnt running properly on boot. Please help me out.

Let me know if there is a better community to post to or if additional info is needed. Thanks.