We’re currently working on many related issues of ‘portable’ projects (i.e., projects which are easy to share). We will introduce a number of connected project settings that will cover the most common usage scenarios; this is not finished yet, but you can already make a project use photo paths relative to the project file. What this means, in a nutshell, is that you can put your project file into a folder with all your photos, copy the whole folder to a different computer and open the project there (for more, see this thread).
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