Setting up local Rococo testnet

Follow along in more detail here: https://substrate.dev/cumulus-workshop/

1. Install Rust
   • https://substrate.dev/docs/en/knowledgebase/getting-started/ or just
   • curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
   • Restart your terminal
2. Build Relay Chain Node
   • git clone https://github.com/paritytech/polkadot.git
   • cd polkadot
   • git checkout 93f0029
   • rustup install nightly-2020-10-06
   • rustup target add wasm32-unknown-unknown --toolchain nightly-2020-10-06
   • cargo +nightly-2020-10-06 build --release
   • Print the help page to ensure the node built correctly:
     • ./target/release/polkadot --help
3. Build Collator Template
   • git clone https://github.com/substrate-developer-hub/substrate-parachain-template.git (from the main rococo_testnet folder)
   • cd substrate-parachain-template
   • git checkout 9506b93
   • cargo build --release
   • Print the help page to ensure the node built correctly:
     • ./target/release/parachain-collator --help
4. Now everything is compiled/ready to go!
5. Start Alice, Bob, and Charlie

./start_alice.sh
./start_bob.sh
./start_charlie.sh

1. Start the parachains:

./start_200.sh
./start_300.sh

1. Register the parachains
   • First, run ./start_files.sh to generate the wasm and genesis files that are necessary (results in 2 files per parachain)
   • Follow the steps on this page: https://substrate.dev/cumulus-workshop/#/3-parachains/2-register to register the parachains with the relay chain

Now you should have a fully functioning network with 3 validators and 2 parachains!