https://squid.subsquid.io/polkadot-psp34-nft-indexing/v/v1/graphql
Dependencies: Node.js, Docker.
# 0. Install @subsquid/cli a.k.a. the sqd command globally
npm i -g @subsquid/cli
# 1. Retrieve the template
sqd init my_squid_name -t frontier-evm
cd my_squid_name
# 2. Install dependencies
npm ci
# 3. Start a Postgres database container and detach
sqd up
# 4. Start the processor
sqd process
# 5. The command above will block the terminal
# being busy with fetching the chain data,
# transforming and storing it in the target database.
#
# To start the graphql server open the separate terminal
# and run
sqd serve