Oh wow, hadn't thought of that. Could be very possible! I'd say the main drawback is that would probably require self-hosting it instead of making use of Binder to have it available for free.
But you're right, the speed is definitely the biggest problem. I'll definitely take that idea seriously if I do anything else with this.
But you're right, the speed is definitely the biggest problem. I'll definitely take that idea seriously if I do anything else with this.