Introducing the ZSA Testnet
The ZSA testnet is a distinct public network dedicated to testing ZSA. It is not the regular Zcash testnet. It runs a ZSA-enabled version of Zebra and lightwalletd, with NU 6.2 activated (but not Ironwood). Anyone can issue custom assets, transfer them between shielded addresses, and finalize them, using test funds that have no real value. Addresses use the regtest prefix uregtest1, not the mainnet u1.
The ZSA testnet exists so application developers can build on ZSA and experiment.