u/Frequent-Shallot9293

Wanna start off by saying im fairly new to this hobby and I am absolutely clueless when it comes to some things.

I wanted to get automatic curtains for my room, the kind that would open on certain times of day and whatnot, after discovering that those type of things cost upwards of 300USD and im still a kid, I decided on trying to build them myself. The issue is I don't know how the arduino (arduino nano) will behave when being powered several hours if not days straight, and since cash is limited right now i really have little room to wreck any boards as part of trial and error process. Any issues I might encounter? Tips? Maybe some kind of magical solution?

TL;DR what issues might I encounter if my board is powered for days on end.