Görli Testnet is the first proof-of-authority cross-client testnet, synching Parity Ethereum, Geth, Nethermind, Pantheon, and EthereumJS. This testnet is a community-based project, completely open-source, naturally. It was born in September 2018 during ETHBerlin and has been growing in contributors ever since. There are several bounties up for people that want to contribute. Please read the bounty announcement for the details and check available tasks on Gitcoin. Last but not least, we are building our validator network! So if you are interested in spinning up your own node, road the deployment guide. Görli Testnet is a community-built proof-of-authority cross-client testnet, the first one of its kind. It was launched at the GörliCon in Berlin on January 31, 2019.