Project Overview – On-Chain Print-On-Demand (Solana / USDC) I’m building a fully on-chain, crypto-native print-on-demand platform where the entire checkout and settlement layer runs on USDC over the Solana network. The core business flow mirrors classic POD—product customisation, order placement, automated fulfilment—but all monetary logic, incentives, and records live on-chain. This is not just a Web2 store with a crypto payment button. The goal is a decentralised commerce layer where ownership, payments, rewards, and royalties are transparent, programmable, and composable. Core User Flow User selects a product (t-shirt, hoodie, cap, mug, etc.). User customises it in real time (text, colours, image upload, positioning). Wallet is connected (Phantom + Solana-compatible wallets). Checkout happens exclusively in USDC (SPL token). Funds are escrowed via a smart contract. Order is pushed automatically to the fulfilment provider. Order status updates are synced back on-chain. Upon fulfilment confirmation, funds are released programmatically to suppliers and other stakeholders. Web3-Native Features (Added & Important) Token-Based Benefits Free shipping for token holders (based on NFT ownership or SPL token balance). Automatic discounts for verified holders (tiered by balance or NFT traits). Token-gated products (exclusive designs only visible / purchasable to holders). Optional loyalty rewards paid back in USDC or a project token. Shipping & Pricing Logic Shipping cost calculated off-chain but validated and finalised on-chain. Shipping fee waived automatically if wallet meets holder criteria. Transparent breakdown: base price, shipping, royalties, supplier cut. Escrow & Royalties Smart contract escrow holds funds until fulfilment state is confirmed. Automatic payout split: Supplier / fulfiller Platform fee Optional creator royalty (per design or collection) Immutable on-chain record of: Order ID Product metadata hash Wallet address Payment amount Royalty recipients Technical Stack (Preferred) Smart Contracts Solana + Anchor (Rust) SPL Token support (USDC now, extensible later) Upgradeable program architecture Events emitted for: Order created Payment received Order fulfilled Funds released Dispute opened / resolved Front-End React / Next.js (TypeScript) In-browser product personaliser (canvas/WebGL or similar) Solana wallet adapter (Phantom + WalletConnect) Real-time order & payment feedback Mobile-first, responsive UI Back-End / Bridge Layer REST or GraphQL API Listens to on-chain events Syncs order data with fulfilment provider (POD API) Pushes fulfilment status updates back on-chain Minimal trust assumptions (stateless where possible) Admin & Ops Dashboard Order queue overview Payment & escrow status Fulfilment state tracking Manual override tools (edge cases) Dispute resolution interface (on-chain flags + admin actions) Ability to: Pause fulfilment Refund orders Resolve disputes Milestone Deliverables (MVP) Reviewed smart contract(s) deployed on: Solana Devnet Solana Mainnet-Beta Event-driven bridge layer syncing blockchain ↔ fulfilment provider. Production-ready front-end with: Product personaliser Wallet connection USDC checkout Admin dashboard for order & payment management. Clear documentation, including: Local development setup Contract upgrade path How to add additional SPL tokens later How token-gated perks (free shipping, discounts) are configured Development Style & Expectations MVP deployed to devnet ASAP for supplier onboarding. Clean commits, iterative pushes, and clear separation of concerns. Security-first mindset (escrow, replays, fulfilment confirmations). TypeScript-friendly tooling throughout. If anything above needs clarification, I’m happy to refine the scope. Please also share links to previous Solana / crypto-commerce projects you’ve worked on so I can review your code quality and architectural approach.