One thing that CakePHP 3 documentation has you do when you install is put the CakePHP Core inside the vendor directory of the app. If you want to share the CakePHP core between multiple apps you can follow these simple steps.
Step 1: Install the CakePHP 3 AppStep 2: Move the CakePHP 3 core to somewhere external
In this example, I am going to put it inside `/CakeCore/cakephp` but you can put it wherever.Step 3: Change the Core Definition in your App
Lastly we need to point the app to the newly cloned core.And replace this line (approximately line 73): With this line: That's it! Continue on your merry way.