Database

Account Abstraction (AA) fundamentally changes how users interact with EVM chains by enabling smart contract accounts. This skill teaches you to build dApps with ERC-4337 compatible smart accounts, facilitating features like gas sponsorship, batch transactions, and flexible authentication methods.

Develop dApps and smart contracts on the Aptos blockchain using the Move language, Aptos SDKs, and CLI tools. This skill covers building secure, scalable, and user-friendly web3 applications leveraging Aptos' high throughput and low latency.

This skill covers building decentralized applications and smart contracts on the Avalanche network, including its C-Chain, X-Chain, P-Chain, and custom Subnets. Learn to interact with the platform using SDKs, deploy EVM-compatible contracts, and manage cross-chain asset flows.

Develop, deploy, and interact with smart contracts and dApps on Base, an Ethereum Layer 2 solution built on the OP Stack. Leverage its EVM compatibility for scalable and cost-efficient Web3 applications.

Master the Cosmos SDK for building custom, sovereign blockchains (app-chains) and decentralized applications with inter-blockchain communication (IBC). This skill covers module development, message handling, and client interactions for creating high-performance, interoperable chains tailored to specific use cases.

Develop, test, and deploy secure smart contracts on Cosmos SDK blockchains using Rust and CosmWasm.

Learn to build and interact with ERC-4337 Smart Accounts, enabling gasless transactions, multi-factor authentication, and custom validation logic without protocol-level changes.

Ethers.js library for Ethereum wallet management, contract interaction, and blockchain queries

Foundry testing framework for Solidity-native smart contract development, testing, and fuzzing

Hardhat development environment for compiling, testing, deploying, and debugging Solidity smart contracts

IPFS and decentralized storage integration for NFT metadata, dApp assets, and on-chain content addressing

You are building low-latency, high-throughput, and low-cost payment channels on top of Bitcoin.

Move is a safe and secure smart contract language designed for resource-oriented programming, powering blockchains like Sui and Aptos. This skill teaches you to define, manage, and interact with on-chain assets and logic using Move's robust type system and ownership model.

Master the NEAR Protocol for building scalable, user-friendly decentralized applications. This skill covers smart contract development with Rust, frontend integration with near-api-js, and understanding NEAR's account model and transaction flow.

This skill covers building, deploying, and interacting with smart contracts on Optimism and other OP Stack chains.

This skill teaches you how to create, manage, and interact with Ordinals inscriptions on the Bitcoin blockchain. You'll learn the core mechanics of attaching arbitrary data to satoshis, enabling unique digital artifacts and BRC-20 tokens directly on Bitcoin.

This skill covers building custom blockchains (parachains) and decentralized applications (dApps) using Substrate, the framework powering Polkadot and Kusama. You learn to leverage its modular architecture for high-performance, interoperable blockchain solutions.

Build and deploy scalable decentralized applications on Polygon's ecosystem, including PoS, zkEVM, and Supernets. Learn to leverage Polygon's low fees and high throughput for EVM-compatible development.

Learn to build high-performance, secure, and scalable on-chain programs for the Solana blockchain using Rust. Master Solana's account model, CPIs, and program-derived addresses to create robust decentralized applications.

Anchor is a framework for Solana smart contract development that simplifies writing secure and robust programs.

Solidity smart contract design patterns for secure, gas-efficient, and upgradeable contracts

This skill covers building decentralized applications and smart contracts on Starknet using the Cairo programming language.

The Graph protocol for indexing and querying blockchain data with subgraphs and GraphQL

Build decentralized applications, smart contracts, and infrastructure on The Open Network (TON). Master the FunC language, Tact, and TON SDKs to create high-performance, scalable dApps leveraging TON's sharded, asynchronous architecture.

Viem and Wagmi libraries for type-safe Ethereum interaction and React-based dApp development

WalletConnect v2 integration for connecting mobile and desktop wallets to dApps across multiple chains

Building and deploying decentralized applications on zkSync Era, a ZK-Rollup for Ethereum. This skill covers leveraging zkSync's EVM compatibility, Account Abstraction, and unique L1-L2 interaction mechanisms for scalable and cost-effective dApps.