Hi, my name is

Calvin Hofman

I build for the decentralized web.

I'm a full-stack developer and founder of LeafyLines, specializing in Web2 websites and consulting. With 6 years of coding experience, I create innovative web applications and also explore Web3 technologies.

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About Me

At 23 years old, I've been immersed in the world of programming for 6 years. I'm the founder of LeafyLines, where we specialize in building modern Web2 websites and providing expert consulting services to help businesses establish their online presence.

I've had the privilege of working with amazing clients including Oliver Heldens, Van Winden Auto, and Saab Delft. My expertise spans across JavaScript, TypeScript, PHP, and modern web technologies, with a growing interest in blockchain and Web3 development.

When I'm not coding or consulting with clients, you'll find me bouldering—a hobby that teaches me the same problem-solving skills I apply to development: finding creative solutions to complex challenges.

6 Years Experience

Building web applications and digital solutions

LeafyLines Founder

Web2 development and consulting services

Bouldering Enthusiast

Solving problems one climb at a time

Languages

Dutch - Native

English - Fluent

Swedish - Beginner

Skills & Technologies

Blockchain

  • ▹Solidity
  • ▹Smart Contracts
  • ▹Web3.js
  • ▹Ethers.js
  • ▹DeFi

Frontend

  • ▹JavaScript
  • ▹TypeScript
  • ▹React
  • ▹Next.js
  • ▹HTML5
  • ▹CSS3

Backend

  • ▹Node.js
  • ▹PHP
  • ▹REST APIs
  • ▹GraphQL

Tools & Others

  • ▹Git
  • ▹IPFS
  • ▹Hardhat
  • ▹Truffle
  • ▹MetaMask
JavaScriptTypeScriptSolidityHTML5CSS3PHP

Web3 Projects

A showcase of my blockchain and decentralized application projects. From DeFi platforms to NFT marketplaces and meme coin launchpads, each project demonstrates expertise in smart contract development and Web3 integration.

AI Trading Assistant

AI Trading Assistant

Voice-activated AI trading bot for cryptocurrency with portfolio management, token swapping, and automated trading commands. Features real-time price checking and limit orders.

SolidityReactWeb3.jsAI/ML
SOLRAIN Exchange

SOLRAIN Exchange

Solana-based staking and exchange platform with NFT marketplace integration. Users can stake SOLRAIN tokens, participate in the dApp, and access the whitepaper and roadmap.

SolidityNext.jsSolana Web3.js
Bank of Sol

Bank of Sol

DeFi banking platform on Solana offering secure vault storage, lending, and borrowing services with a futuristic interface and advanced security features.

SolidityTypeScriptSolanaReact
Steakd Platform

Steakd Platform

NFT royalties calculator and staking platform with food delivery system integration. Track SDX token trading, calculate daily and monthly royalties, and manage NFT staking.

SolidityReactEthers.jsIPFS
WorldNFT Marketplace

WorldNFT Marketplace

Comprehensive NFT drops platform featuring collections like Portals of Eternity and Passion World series. Includes 18+ content filtering and diverse NFT collections.

SolidityNext.jsIPFSWeb3.js
GrandPepe Staking

GrandPepe Staking

Meme coin staking platform with no lock-up period, instant withdrawals, and compound rewards. Features NFT bonus APR allocation and real-time staking position tracking.

SolidityReactEthers.jsTypeScript
LunarPumpFun

LunarPumpFun

Meme coin launchpad with live streaming integration, ICO launches, and King of the Galaxy competition. Features real-time token bonding progress and community engagement.

RustNext.jsSolana Web3WebRTC

Web2 Client Work

Professional websites and consulting work through LeafyLines. Delivering high-quality web solutions for clients ranging from international artists to local businesses.

Oliver Heldens Official Website

Oliver Heldens Official Website

Official website for world-renowned DJ and producer Oliver Heldens. Features music releases, event calendar, merchandise shop, and contact information.

HTML5CSS3JavaScriptPHP
Van Winden Auto's

Van Winden Auto's

Professional website for Van Winden Auto's, a modern car repair and maintenance shop in Delft. Features service listings, diagnostics, APK inspection, and damage repair information.

HTML5CSS3JavaScriptPHP

Get In Touch

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision. Whether you need a blockchain developer or want to collaborate on Web3 innovations, feel free to reach out!

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