Introduction to Cumulus

polkadot-sdk/cumulus at master · paritytech/polkadot-sdkGitHub

Official documentation of Cumulus

polkadot_sdk_docs::polkadot_sdk::cumulus - Rustparitytech.github.io

What is Cumulus?

A set of tools for writing Substrate-based Polkadot parachains. Refer to the included overview for architectural details, and the Connect to a relay chain how-to guide for a guided walk-through of using these tools.

It's easy to write blockchains using Substrate, and the overhead of writing parachains' distribution, p2p, database, and synchronization layers should be just as low. This project aims to make it easy to write parachains for Polkadot by leveraging the power of Substrate.

Cumulus clouds are shaped sort of like dots; together they form a system that is intricate, beautiful and functional.

Consensus

parachain-consensus is a consensus engine for Substrate that follows a Polkadot relay chain. This will run a Polkadot node internally, and dictate to the client and synchronization algorithms which chain to follow, finalize, and treat as best.

Collator

A Polkadot collator for the parachain is implemented by the polkadot-parachain binary (previously called polkadot-collator).

You may run polkadot-parachain locally after building it or using one of the container option described here.

Resources

Set Up the Polkadot SDK Parachain Template - Polkadot Developer Docsdocs.substrate.io