As I'm working on my Dell/Linux laptop, I used to start IntelliJ from the command line as instructed in the readme. Starting it from the command line started bugging me after a while, so I wanted to create a launcher for it. Creating a launcher seemed quite simple at first, but getting it to work was something else.
After a while I figured it out that by using the following line in my application launcher:
/bin/sh -c "export JDK_HOME=/path/to/java&&/path/to/intellij/bin/idea.sh"
I was able to get my IntelliJ launcher to work. As you might notice, you will still have to change the path to your JDK_HOME and IntelliJ installation directory, because they might be different on your own system.
I hope this post can help all of you out there trying to do the same thing.