Hello. These last couple of weeks I have started training at home; I got a doorway pullup bar and some dumbells with plates that go into 10 kg. max for each. I'm a 172 cm male, I weight like 64 kg at the moment and I've got an ectomorph physique and I'd say my biggest goal is to get wider in my upper body.

For the moment I'm doing pushups, pullups/chinups (at the moment I can do 1-2 reps with good form) and I'm using the dumbells with 4kg each for doing lateral raises and rear delt flys (in a W raise position as recommended by Athlean-X).

I'm wondering if, from a future perspective these would be enough to grow muscle (except chest, as I believe you can't go far with only pushups, correct me if I'm wrong).

I would be glad if you guys could give some opinions or advice. For example, at what point can I consider adding weight with a belt to my pullups? And if I do, how much weight can I add? Is the 10 kg weight enough for lateral/rear delt raises? (I'm guessing it's a lot but asking to be sure)

Thank you in advance