Check out source code
brew install jq // Or similar appoach on Linux and Windows
npm i
npm run devNotice - if you are not able to start the app, check if cennznet-node is in dist folder; if not, check with the maintainers, as the automatic processing is still under development.
After entering runanode app, there are two options to connect to test network - Rimu(UAT) or local-testnet (under development), select joining into Rimu network, for example, and then cennznet-node running behind the Electron runanode app will connect and sync with the network.
Developers are able to navigate to a target page in development mode, without need to wait for 100% fully synced.
Please read through development guide for more technical details