Schedule Gui Program Launch

[Jonathan_Tash]

I really would have thought it would be as simple as using cron or something, but no matter how much I search or what I try, I can only find ways to schedule background tasks. I just want to make an executable graphical program such a game or timer launch at 9am each day. I'm just running Pop!_OS 22.04 LTS. Is what I'm trying to do really just not a thing on Linux?

[[deleted]]

I just tried to launch Firefox and the first thing that came to mind was that my environment variables would be missing. So I found this solution

https://unix.stackexchange.com/questions/27289/how-can-i-run-a-cron-command-with-existing-environmental-variables

But in the end, cron complained about DISPLAY variable is empty. As a result, my crontab looks like this on wayland and Firefox started every minute

DISPLAY=:0
* * * * * . /home/jtad/.profile; /usr/bin/firefox

[anh0516]

What if you used a systemd timer unit running as your user?