Here you can learn about compatible networks
Currently the only supported wallet is Metamask. If you have not installed it, you will be prompted to do so. We plan to add support for multiple wallets in the future.
You can configure your Metamask to any network and it will work just fine.
However, using non-supported networks will result in worse user experience for anyone who accepts your terms since they will need to manually configure their Metamask too.
The benefits of using a supported network is that you can be sure the smart contract works on it and you get the benefits of onboarding users fast. The Ricardian contract will have a button to switch to the network.
Network config button on the bottom of the contract will auto configure Metamask