Unable to use a custom rpc in wagmi

[nitishpatel]

Current Behavior

No option to pass a custom rpc for a network for a wagmiConfig.
I tried all the ways by using createConfig or using the wagmiInit options however I couldn't pass an custom rpc for a specific network to be used and can't seem to find any documentation for the same.

export default init({
 wagmi // Unable to do anything here,
  // An array of wallet modules that you would like to be presented to the user to select from when connecting a wallet.
  wallets: [metamaskSDKWallet, walletConnect, injected],
  // An array of Chains that your app supports
  chains: [
    {
      id: '0x33',
      token: 'XDC',
      label: 'XinFin Apothem',
      rpcUrl: 'https://rpc.ankr.com/xdc_testnet'
    }
  ],

  },
  accountCenter: {
    desktop: {
      enabled: false
    },
    mobile: {
      enabled: false
    }
  }
  
});

Expected Behavior

A way to have a custom rpc for an network

Steps To Reproduce

No response

What package is effected by this issue?

@web3-onboard/core

Is this a build or a runtime issue?

Runtime

Package Version

2.22.2

Node Version

21.5.0

What browsers are you seeing the problem on?

Chrome

Relevant log output

No response

Anything else?

No response

Sanity Check

• If this is a build issue, I have included my build config. If this is a runtime issue, I have included reproduction steps and/or a Minimal, Reproducible Example.