James Bachini

Smart Contracts

  • 3 Examples Of How To Use Assembly In Solidity

    3 Examples Of How To Use Assembly In Solidity

    Ethereum developers can directly use assembly in Solidity to improve the performance of their code. When OpenSea released the Seaport upgrade it reported the use of assembly reduced gas fees by 35% saving it’s users an estimated $460m per year. Today we are going to go through some simple examples of how and when to […]

  • Solidity for Beginners

    Solidity for Beginners

    Solidity is the programming language used to develop smart contracts on Ethereum and other compatible blockchains. In this “Solidity for Beginners” tutorial I will take you from setting up solidity tools to deploying your first contract. James On YouTube Watch On YouTube: https://youtu.be/yM6oRMdMiTM |Subscribe Tools & Setup We will be starting in Remix which is […]

  • SBTs 👻 | Soulbound Token Solidity Example

    SBTs 👻 | Soulbound Token Solidity Example

    Soulbound tokens are non-transferable digital assets. The core concept is storing on-chain data directly relating to a specific address. This is nothing new but there is potential for a ERC SBT contract to provide a industry standard for how we manage user data. James On YouTube Watch On YouTube: https://youtu.be/yCHeHI8hUY8 |Subscribe Ethereum gas costs make […]

  • Solidity Interface Examples | How To Connect The Lego Bricks Of DeFi

    Solidity Interface Examples | How To Connect The Lego Bricks Of DeFi

    Solidity interfaces allow developers to call external contracts from within their own smart contract. This enables us to build on top of the existing DeFi ecosystem. In this tutorial we will be looking at how solidity interfaces work and going through some example code for common tasks. James On YouTube Watch On YouTube: https://youtu.be/GWZmklp7RTg |Subscribe […]

  • Hardhat Plugins & Hacks For Solidity Developers

    Hardhat Plugins & Hacks For Solidity Developers

    Hardhat provides a lot of features out of the box but with the addition of some 3rd party plugins and some additional code snippets we can add custom functionality to streamline our testing and migration processes. Top 3 Hardhat Plugins These plugins add a lot of functionality to make your life as a developer easier […]

  • Foundry Tutorial | How To Debug & Deploy Solidity Smart Contracts

    Foundry Tutorial | How To Debug & Deploy Solidity Smart Contracts

    Foundry is a Solidity Framework for building, testing, fuzzing, debugging and deploying Solidity smart contracts. In this Foundry tutorial we will cover the following: Introduction To Foundry [Video] James On YouTube Watch On YouTube: https://youtu.be/VhaP9kYvlOA |Subscribe Smart contracts are most often written in Solidity but tested and deployed using Javascript frameworks such as Truffle or […]

  • 5 DeFi Growth Metrics For Better Valuations

    5 DeFi Growth Metrics For Better Valuations

    Growth metrics have been used by tech VC’s for years to predict and monitor companies growth patterns. Terms like CAC (Customer acquisition cost) and LTV (Lifetime value) are critical to how we value startups in the traditional space. In DeFi the landscape is different and the metrics that we use are too. However on-chain transparency […]

  • Tokenomics Boilerplate | Governance Tokens, Uniswap Buy-Backs and Staking in Solidity

    Tokenomics Boilerplate | Governance Tokens, Uniswap Buy-Backs and Staking in Solidity

    In DeFi a projects success is greatly tied to the effectiveness of the tokenomics. Governance tokens can be distributed to the users to incentivise growth and fees can be used to buy these back on exchange. In this Solidity tutorial we are going to deploy a governance token, a Uniswap v3 liquidity pool, a buy […]

  • EthGlobal Hackathon | Winning $4300 And Advice For Future Participants

    EthGlobal Hackathon | Winning $4300 And Advice For Future Participants

    EthGlobal hackathons are the largest and most prestigious in the blockchain developer space. The February 2022 “Road To Web3” event was focused on the migration from web2 social networks to web3 technologies. Over the weekend around 400 teams built projects using sponsors technology including Polygon, Uniswap, Moralis and Web3Auth. This video talks about the experience […]

  • Introduction To DEX Arbitrage | Intermediate Solidity Tutorial

    Introduction To DEX Arbitrage | Intermediate Solidity Tutorial

    This Solidity tutorial will provide an introduction to DEX arbitrage with real, working, profitable open-source code. Solidity developers have the ability batch multiple swaps together and if they are not profitable revert the entire transaction only paying the transaction fee. The creation of EVM blockchains which have low transaction fees has created a playground for […]