Fork the official networks repository.

Clone the forked repository.

Initialize the chain configuration files.

gitopiad init [moniker] --chain-id [chain-id]

Overwrite the genesis.json file in the chain configuration directory (${HOME}/.gitopia/config/).

Generate your wallet

gitopiad keys add <name>

Create the gentx transaction for your validator.

gitopiad gentx --name <name> \
    --amount 100000000tlore \
    --commission-rate 0.1 \
    --commission-max-rate 0.2 \
    --commission-max-change-rate 0.01

Copy the gentx file to the repository.

Commit and push it to the forked repository.

Create a pull request from the forked repository to the official repository.