You're referring, it appears specifically to keeping the to-do list in server storage. That works - until either the object you hold the list in goes out of scope or the server terminates, whichever comes first.
There are other non-database approaches, however, such as using ordinary disk files. In fact, the TaskWarrior tool that I use for my own daily to-do list keeps its list in flat files.
An IDE is no substitute for an Intelligent Developer.