Fine. I give permission.

As a bit of explanation, because I do actually know what these things are:

Alternate Class Features- A suite of class features that replace specific class features at a specific level (or levels) on one class. Can be taken a la carte, meaning if you don't want to trade out your level 4 class feature, you don't have to.

Archetypes- A suite of class features that replace multiple class features (or sometimes add new ones) on one class. Must all be taken together, meaning if you really like that 4th level ability on the core class but it gets traded away... well tough. Archetypes that trade away the same class features cannot be stacked, but if they don't trade away any overlapping features you're golden.

Class Templates- Are Archetypes that can be applied to multiple classes. They're organized a bit differently, with each class' lost features detailed first, then the suite of abilities that they gain is detailed below (along with what level each class gains those abilities). Usually they include a number of options that the player can pick from to add to the class. Otherwise they follow the same rules about stacking that Archetypes do.

Racial X- One of the above three choices that is limited to specific races. Usually humans have some sort of bull**** way of getting around the racial limitations, because humans are obviously the best race ever. Also usually, Half-X races qualify for Racial ACFs/Archetypes so long as their X matches the race of the ACF/Archetype.