How to Save Project and Access from Different Computer

I am trying to learn unity and have created a project and trying to figure out the best way to access the same project from both my mom’s and dad’s house using different computers (I’m 15). I tried saving the project to OneDrive, but when I try opening from the computer at my dad’s (I started it at my mom’s) it says “The project is not valid”. Can someone please point me in the right direction?

I take a copy of the project folder where I skip Temp, Library, Logs and obj folders (and any hidden folder). Then the project can be opened without problem on the same version Unity on the other computer… Still a straight copy should also be possible, then the Library folder will be recreated to fit… try and delete the Library folder and open again.