ChainCatcher news, the decentralized derivatives exchange Syndr based on Arbitrum Layer3 Arbitrum Orbit has launched the Syndr Chain testnet in collaboration with the Rollup platform Caldera, which is currently in invite-only access, allowing users to register and experience it under invitation.It is reported that Syndr offers services such as options, perpetual, futures trading, and perpetual + options LP pools. (source link)