• install starport. (protoc as well)

curl https://get.starport.network/starport! | bash

• download orchestrator and client binaries from the releases.
• install Go and set any required environment variables like $(go env GOPATH)/bin to $PATH.
• install vue
• go into scripts/cosmos-gravity-bridge/solidity and setup hardhat as follows:

  - npm init
  - npm install --save-dev ts-node typescript
  - npm install --save-dev chai @types/node @types/mocha @types/chai
  - npm install --save-dev hardhat-waffle ethereum-waffle chai hardhat-ethers ethers typechain typechain-target-ethers-v5
  - npm install --save-dev hardhat

• start gravity process through starport with starport serve --force-reset in the root directory.
• you might need to copy gravityd to gravity under $PATH. ex) whereis gravityd -> cp gravityd <new_location>
• install and start a geth process (light sync mode recommended).
• navigate to scripts/
• in setup-orch.sh, modify the cosphr variable to what's shown as alice's private mnemonics.
• run setup.orch.sh. Occasionally the orchestrator might lag a bit and not produce a erc20 representation of the cosmos native token. Just re-run the last command orchestrator deploy-erc20-representation...
• in the frontend localhost:8080/types you can create some cosmos->eth txs.
• run client build-batch from alice to confirm batch transaction on ethereum. Or, you can refer to client cosmos-to-eth command to make txs on the CLI.
  • Note: make sure you're using stake or mstake while transferring, and Amount and Fee field have to have same denominations. 1234stake and 12stake.
• run client eth-to-cosmos to send some tokens back to cosmos. Any ERC20 tokens can be transferred.
• see the txs go through.