I don’t plan to store a great deal of information on the NextCloud system so I am considering running NextCloud and storing my data on the same micro SD card.
Am I likely to have any problems doing this?
What can I do to reduce and/or prevent any possible issues with this set up.
The only issues you would probably face are performance and reliability. Performance just depends on the board and the particular card. And of course SD cards, like any other storage, will eventually fail.
So use a good SD card and be sure to back up your system, but beyond that, it shouldn’t make much difference as long as the hardware is up to the task.