Just need to have a number of nodes running it and some way of coordinating the current state of the network. Something like nodes follow the longest chain of cryptographic proofs.

yes or you have to allow an update mechanism which either requires trust in a 3rd party or the operator the “DoS” concern can also be selectively allowing mint operations with say 50% fee, so they can basically rug anyway as users will choose 50% instead of 0%. and there’s the question of how you delegate keys across restart. answer: trusted 3rd party