Extension question

So I own a lot of rob2e's, a majority are the coding effects. Feats, Race Traits, Armor, Potions, Magic Items, etc. My question is as the DM I have them all loaded, but the players have the option of loading them as well. Is that needed for them to work properly. Or can I just load them and not the players for them to work properly.

Nobody needs to have them loaded unless you are actually applying the effects. Once you have applied them you can close the module. Any module that is shared with your players you don't need to have loaded at all. (assuming the players are applying the effects and not you).

I, as DM, don't load the modules, but I tell my players they can so that they can them apply them to their characters. Then they can close them again as desired.