Things like using an engine other people made is fine, but having someone else program or do art for you is too far, so where is the line there? Can I get a friend to do something like voice acting?
well... yeah. with an artist you can ask them to make pretty much any asset which goes against the jam's rules, but if you cannot make something yourself, you can use something already pre-made as long as it's foss and your entire game is not overusing it, so that your game isn't just an asset flip. it's different than having a team since with assets you can only choose whatever is available, but with a tea, you have much more power over your entire project. Also make sure to credit every asset that you may use! pretty much sure that will affect your game rating..... or not, its up to acerola honestly lmao