Does garry do everything? or does he have a team?
He has a small team.
All the people under Members on the right are involved in developing Rust one way or another.
Yes he is, he just has like 100 clones of himself and every clone has a specific part of their body which is cloned, either being the penis, arm, leg, tits, ear, nose etc,
P.S no worries for the educated answer
Yeah Garry masters in designing models, textures, maps, and sounds, coding all by himself
Im not sure if this is sarcasm or not but quite a few mod makers would do all this themselves.