Thank you for your comment, however, considering that renting a VPS with similar specs would cost twice, if not more, for a single year, I believe that factoring in a second drive for RAID configuration and a potential UPS (although I would not mind the downtime) is more than possible.
My only gripe with wiki.js was the use of SQL for local storage. My wiki must be future proof and locking myself in an obscure SQL database was the deal breaker. I know that you can sync with a Git repo, but it felt like an overkill.