I recently downloaded an app that I wanted to run without a dock icon. There wasn't a preference to run that way, but I remembered that there was a way to edit a file within each app's "bundle" (.app "files" are actually folders or packages).
Sure enough, a little time on Google brought me to information about adding or changing the "LSUIElement" key in the app's Info.plist file. It also led me to Dockess which was an app which would automatically set that key for you, simply by dragging the app to Dockless' window.
That seemed much safer than editing the file myself, so I downloaded Dockless, dragged the app to it, and restarted the app.
It crashed immediately. And every time afterwards.
I'm no math whiz, but I
