| Developer friendly wallet for Substrate blockchains| https://polkadot.js.org/ |
| Build you own Substrate blockchain | https://docs.substrate.io/tutorials/get-started/build-local-blockchain/ |
| Send extrinsics from code or cli | https://github.com/paritytech/subxt |
| Substrate frontend template (use this if you need a frontend connecting with PolkadotJS) | https://github.com/substrate-developer-hub/substrate-front-end-template |
Use the following materials to educate yourself about the ecosystem projects present in the PMC hackathon. This helps you to prepare yourself for the main track challenges. You can also start building some topoligies or code skeletons for interacting with the projects.