Thank you for your answer. KNIME Hub is, as I understand it, a public repository. It would not make sense to put everything there.
My main goal is to be able to use KNIME on my PC and on my laptop. Since my laptop is rather weak, I would mainly use it to develop the workflows. Then I would like to sync it to my pc where I could actually run it.
Use something like DropBox and have your knime-workspace there. If you have finished your work on one PC make sure everything is saved, KNIME has been closed and the sync is complete. Then you can use the 2nd PC, wait till DropBox has done the sync and the open KNIME. This does work and has the additional benefit of creating a backup and a version control.
If you store a workflow with its data (green traffic light) everything should be fine as log as you give the sync enough time. Also you have to make sure that your Cloud provider would accept some special characters like # in the file names (there have been issues with some settings of OneDrive for companies in the past).
The next thing you could do is indeed use and external drive. Here it is key that the connection ist stable and you shut down KNIME gently and unplug the drive in a gentle way. The principle would be the same.
I would recommend you try the DropBox solution. I have used this with MacOS and windows for some time. Just make sure only one instance of KNIME is active at the same time.
I use the Dropbox approach myself. A few tips to avoid trouble.
Always close all workflows before shutting down KNIME.
Always update KNIME and add extensions to both computers at the same time.
Don’t try to work and save the same workflow on both computers simultaneously.
Install Dropbox in the same directory location of both computers. Mine is always out in the open on the C: drive…
I even go as far as ensuring that the windows user folder has the same name as well, but that can be a pretty technical change which requires a few program adjustments afterwards. This one is only necessary for rare advanced automation workflow use cases.