eMunie supports it, and has been a requirement from day 1 of the project.

Our ledger also supports partitioning, where nodes can elect to store only a part of the entire ledger.  This is to allow storage limited nodes to still provide value in regard to securing the network.

With this ability, even if the network is seeing loads 100s or 1000s of times greater than what BTC is currently, low resources devices such as Pis can participate without needing terabytes of storage available to them.