Describe the feature

Description

My project is using hardhat-viem

When setting up a local Ethereum development network ( not hardhat/foundry, a whole ethereum network ), in hardhat.config.ts, e.g:

  config.networks = {
    devnet: {
      chainId: 3113031,
      url: `localhost:mygeth`,
      accounts: [
        "myaccount"
      ],
      gasPrice: '',
      gas: '',
    }
}

I'm getting this error:

Error in plugin @nomicfoundation/hardhat-viem: No network with chain id 3113031 found. You can override the chain by passing it as a parameter to the client getter:

import { someChain } from "viem/chains";
const client = await hre.viem.getPublicClient({
  chain: someChain,
  ...
});

You can find a list of supported networks here: https://github.com/wevm/viem/blob/main/src/chains/index.ts

For more info run Hardhat with --show-stack-traces

Feature request

I want to be able to direct hardhat-viem to my defined chainId and node url, should probably use defineChain from viem, somewhere around this codepath I guess. I tried to sketch up some code, but it seems not as trivial since EthereumProvider doesn't exposes the json url.

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