There should be a scratch extension for porting your projects to applications (with the .exe extension). Converting it to javaScript would be pretty easy- repeat loops are for loops, if statements remain the same, etc.

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yea it would

Yes you can port it using https://packager.turbowarp.org/ for scratch 3.0
You can convert into exe or html
Also this is the wrong forum where you asked it. This is only for those extensions like pen, makey makey, you should move this to advanced topics

Porting your projects into applications?

Agree