There are 2 repositories under polkadot-blockchain topic.
Typesafe React hooks and utility functions that simplify the process of working with Substrate-based networks and ink! smart contracts.
Substrate ETL represents Polkadot + Kusama dataset in Google BigQuery. All finalized data is published in a public dataset in BigQuery daily and Dune on an hourly basis.
A tool for benchmarking smart contract execution times across blockchains.
Static analyzer for Substrate FRAME's pallets
A functional ecommerce consuming store api. You can pay using Dots/KSM. It's integrated with coingecko, so you can see all the prices converted to the live price of the coins. It uses polkadot.js, Chakra and Next.js for SSR and SEO and SWR.
Build a User Interface which can access and interact with custom storage items and functions from Substrate Kittie Chain
A bridge between Polkadot and Stellar Blockchains. Programmed in Rust.
This is the BITG wallet for polkadot side chain. This app use the polkadot-js library.
A list of awesome Polkadot resources
Discord bot for announcing referendums in the governance of Substrate chains on Polkadot and Kusama.
Server for the testnet fund
"The Hero Course" - SubQuery module 1 exercise
Playing around with Substrate and Polkadot