Lisk is designed to primarily perform a single function or application, such as a game or a DeFi application. This means that applications can use the full resources of the chain, such as throughput, state, etc., without competing with other applications. In addition, the application itself can flexibly optimize the technical architecture, security parameters, throughput, etc. of the chain to match the application requirements. Because it is only for specific applications, Lisk is generally not "permissionless" to developers, but "permissionless" to users. At this level, Lisk deviates from standard blockchain practices, that is, the blockchain is not "permissionless" for users and developers. Staff are open.