How to deploy custom contracts and add custom pre-funded address?

[Unded]

Hi, I am testing an application to send and track transactions.
Previously, before the ethereum-go version 1.4.X, I used a custom docker image with deployed ERC20, ERC721, other custom contracts and a pre-funded address that holds all of the tokens.

However, the Private Networks guide is now marked as outdated, so I need to move all pre-defined contracts to the ethereum-package and I have several questions.

1. Is it possible to use the network_params.yaml config to specify the pre-funded address instead of the genesis_constants.star?
2. Is there any additional information how to deploy a contract (let's say ERC20 contract) from the specific pre-funded address?

[barnabasbusa]

1. You can use your own custom mnemonic, and it will automatically generate the first 20 addresses of that mnemonic to be prefunded.
2. Deploying a contract would be exactly the same method as you have done it previously. You will have to interact with one of your rpc participants.