What technical support can be provided for validator?

You can start implementing nodes on the testnet, as it works the way in the real environment.

There are some options you could choose to run a node,

ENG Version：https://github.com/coinexchain/devops

Simplified Chinese Version：https://github.com/coinexchain/devops/blob/master/README_zh.md

Technical Docs：https://github.com/coinexchain/dex-manual

Noted: To ensure the node runs smoothly, extra technical support might be needed in the process. If you encounter any issues when running nodes, please join in CoinEx Chain Slack group.