Peer-to-peer or P2P networks have existed before decentralization. However, they play a special role in decentralized systems.  P2P networks themselves are decentralized networks because the latter have nodes that do all the communication. These nodes follow the P2P protocol.  As a result, when you are BUIDLing or developing a project in blockchain, its core will always be decentralization and its working mechanism will majorly depend on P2P. Thus, decentralization and P2P in blockchain work as the prerequisites to BUIDLing something extraordinary and useful. This is how BUIDL aligns with decentralization and P2P networks.