My Projects

Check out some of my projects...

Solana Program Hub

Collection of On-Chain Solana Programs

Rust
Anchor
Solana
SPL Tokens
Metaplex
TypeScript
Chai
@solana/web3.js
Oracle Integration (Switchboard)

Decentralized Voting ProgramDeveloped a secure and tamper-proof voting system leveraging the Solana blockchain, enabling transparent polls, verifiable elections, and immutable on-chain vote recording to ensure fairness and trust.

Trustless Escrow MechanismBuilt a decentralized escrow program allowing seamless SPL token swaps between parties without intermediaries, ensuring conditional transfers and fund safety through programmatic smart contract logic.

Provably Fair Lottery SystemImplemented an on-chain lottery with oracle-based randomness for transparent and verifiable winner selection, ensuring unbiased outcomes. Integrated state tracking for participant entries, ticket validation, and automated prize distribution, providing a fully decentralized and auditable gaming experience on Solana.

Solana Program Hub

Xchangeo

Decentralized EVM-Compatible AMM Exchange

TypeScript
Next.js
Tailwind CSS
Hardhat
Solidity
Ethers.js
The Graph
GraphQL
Docker
Ethereum
Chai

Constant Product AMM-Based ExchangeDesigned and developed Xchangeo, a fully decentralized, EVM-compatible exchange built on the constant product AMM model, enabling seamless ERC20 token swaps, transparent fee handling, and on-chain liquidity management.

Liquidity Pools, LP Tokens & FaucetsImplemented liquidity provisioning and removal with LP tokens representing pool shares, along with custom ERC20 token faucets (DAI, USDC, WBTC etc) to support developers and users in experimenting with swaps and liquidity operations on testnet environments.

Real-Time Analytics with On-Chain IndexingBuilt and integrated an indexer with The Graph to track swaps, liquidity, and reserves in real-time, powering interactive frontend charts that provide accurate insights into trading activity and LP positions.

Xchangeo

FundFusion

Fully Decentralized Crowdfunding app

TypeScript
Next.js
Tailwind CSS
Hardhat
Solidity
Ether.js
The Graph
GraphQL
Docker
Ethereum
IPFS
Chai

Decentralized Crowdfunding Platform DevelopmentDesigned and built FundFusion, a fully decentralized crowdfunding platform that empowers users to create, manage, and contribute to campaigns transparently, with automatic deactivation when campaigns reach their target amount or are deleted by the owner, leveraging blockchain technology for secure, tamper-proof transactions and accountability.

Secure Contribution & Refund MechanismImplemented a secure funding system enabling contributors to donate using cryptocurrency, with a built-in refund mechanism that ensures contributors get their funds back if a campaign fails or is deactivated.

Blockchain-Powered Transparency & Admin ControlsIntegrated blockchain-based transparency with real-time updates, IPFS-based image storage, and an admin panel that enables category management, ensuring better campaign organization and an intuitive user experience across all devices.

FundFusion

CryptoCart

Fully Decentralized eCommerce Platform

TypeScript
Next.js
Tailwind CSS
Hardhat
Solidity
Ether.js
Ethereum

Decentralized eCommerce Platform DevelopmentBuilt CryptoCart, a blockchain-powered marketplace that enables users to securely buy and sell products using cryptocurrency, ensuring transparent and tamper-proof transactions with the power of smart contracts.

Seamless User Experience & Product ManagementDeveloped a user-friendly interface with a responsive design, allowing seamless browsing, detailed product listings, and secure purchasing, enhancing accessibility across devices for a smooth eCommerce experience.

Admin Controls & Smart Contract IntegrationImplemented admin functionalities for order tracking, product creation, and secure fund withdrawals, leveraging Solidity-based smart contracts to automate processes while ensuring security and decentralization.

CryptoCart
AP
2025 Arjun Porwal,
All rights reserved.
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