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I made a desktop application that looks like an OS. My question is, can I have that app and make it boot up when I start my Mac just like how OS X would start> If I can, then how?

Thanks.

dda
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user3597140
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2 Answers2

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Uuuugh, what? I don't think you made an OS... But perhaps you made some sort of useful management software, a "Launcher" or similar... There used to be something in Classic OS days that would run without the finder, and allowed you to launch apps. If you wanted to do something similar, I guess you would need to figure out which launchd plist is starting the Finder, and unload it early during boot, and figure out how to get yours launched.

dda
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Grady Player
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    hmm I don't exactly understand, you know how when someone installs windows on a mac? and then when they restart and holt the option key it lets them chose to start in os x or windows, I want that but with my program – user3597140 Jul 08 '15 at 14:41
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    that is using boot camp... it would be easier to develop an os on a VM now of course... I don't really know how you would build an OS in a framework like xojo.. you have to write lots of very low level stuff to deal with processor signals and memory management etc... – Grady Player Jul 08 '15 at 17:53
  • You can write an OS in whatever you like: https://www.toptal.com/nodejs/nodeos-the-javascript-based-operating-system – Alan B May 23 '16 at 10:00
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Since you made an app, it needs the OS to start it. With OS X, you can use launchd to set that up.

Paul Lefebvre
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  • Could you tell me how exactly I would set it up with launchd? I have searched it up but I didn't find anything. I am also very new to this – user3597140 Jul 09 '15 at 11:56
  • My answer has a link to the launchd man page. I have not used it myself, but I'm sure you can find answer here on StackOverflow. If not, start a new question. – Paul Lefebvre Jul 14 '15 at 20:26