Deploy a Test Chain (Mac)

Deploy the Subtensor

The Bittensor subtensor code can be found on GitHub: https://github.com/opentensor/subtensor/

Clone this repository locally, and switch to the dynamic branch:

git clone git@github.com:opentensor/subtensor.git
cd subtensor
git fetch origin rao
git checkout rao

Now we’ll get the Subtensor up and running.. For installation you need rosetta. We’ll also use Homebrew to install OpenSSL. (these instructions are from the GitHub Readme - so if you are in a different OS, check that out and work through the steps).

softwareupdate --install-rosetta

# Install Homebrew if necessary https://brew.sh/
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
# Make sure Homebrew is up-to-date, install openssl
brew update
brew install openssl

Now we need to install Rust. Again there’s a link on the GitHub repo for those of you on different OS.

# Install
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
# Configure
source ~/.cargo/env

#rust configuration
rustup default stable
rustup update
rustup update nightly
rustup target add wasm32-unknown-unknown --toolchain nightly

Config changes

1. Update the scripts/localnet.sh on line 34. In testing, raonet does not work with fastblocks. (this may change before launch). We want to have the pow-faucet to distribute tao to our wallets.

  : "${FEATURES:=" pow-faucet raonet runtime-benchmarks"}"

2. Increase the faucet amount (if desired). Add a few more zeros to this value to ensure that you have enough test tao.https://github.com/opentensor/subtensor/blob/58c1f51cc9f0716545fbf99c10c8d761d19dd472/pallets/subtensor/src/subnets/registration.rs#L397

let balance_to_add: u64 = 1_000_000_000_000;

build

OK - everything is installed for the subtensor, so we can build and run it:

cargo build
sh scripts/localnet.sh

Your subtensor is now running.

Calling the subtensor

When working with your local chain, add the

--subtensor.network local or --subtensor.network ws://127.0.0.1:9946

parameters to your btcli commands. They can be used interchanably for the subtensor running on your computer.

Install Bittensor

The Bittensor Github repo can be found in the same organization on Github: https://github.com/opentensor/bittensor

We’re going to install it, and again use the dynamic branch:

git clone git@github.com:opentensor/bittensor.git
cd bittensor
git fetch origin rao
git checkout rao
python3 -m pip install -e .
cd ..
python3 -m pip install -e bittensor/

Any time there is an update to the subtensor or Bittensor - you’ll need to pull from Github and rebuild and install the dependencies again.

You now have a running Bittensor-Rao subtensor, and are ready to start creating!