ReSol

Secure, escrow-backed secondhand trading with strangers nearby.

ReSol is a mobile-first marketplace for local secondhand sales. Buyers reserve items with USDC held in a Solana escrow program, then release funds after an in-person QR/code handoff.

What is inside

• app/ - Next.js 16 frontend with wallet connection, listings, sales flow, activity, ratings, Vercel beta deployment, and GitHub Pages demo export.
• anchor/ - Anchor escrow program and tests.
• supabase/ - Database migrations, storage setup, RLS policies, and seed data.

Local frontend

cd app
pnpm install
pnpm dev

Copy .env.example to app/.env.local and fill in the Supabase values from supabase start or your hosted Supabase project.

Production build

cd app
pnpm build

Vercel is the canonical host for the devnet beta. The Next config builds as a normal Vercel app by default. GitHub Pages remains available as a static demo when NEXT_PUBLIC_BASE_PATH=/ReSol is set by the Pages workflow.

For the hosted beta to use real data, set these Vercel environment variables:

• NEXT_PUBLIC_SUPABASE_URL
• NEXT_PUBLIC_SUPABASE_ANON_KEY
• NEXT_PUBLIC_SOLANA_CLUSTER=devnet
• NEXT_PUBLIC_RPC_URL
• NEXT_PUBLIC_PROGRAM_ID
• NEXT_PUBLIC_USDC_MINT
• NEXT_PUBLIC_TREASURY

Do not set NEXT_PUBLIC_BASE_PATH on Vercel.

Devnet beta checklist

1. Apply supabase/migrations/* to the hosted Supabase project.
2. Confirm Supabase Auth allows the Vercel URL in URL Configuration.
3. Confirm the listing-photos bucket exists and is public.
4. Set the Vercel environment variables above for production.
5. Run pnpm lint, pnpm build, pnpm verify:devnet, and pnpm verify:supabase from app/.
6. Test the release with two devnet wallets: create listing, upload photo, reserve, cancel, reserve again, release via QR/code, and rate the trade.

Current validation

• pnpm build passes in app/.