Solana ICO / token presale dApp
DeFi Protocol Interface
Next.js Solana interface for Rabbitholes Finance ($RHFI)—wallet connect, live ICO progress, and buyWithSol purchases against an Anchor ico_program IDL.

The challenge
Rabbitholes Finance needed a usable wallet-connected web surface for ICO participation—countdown, live progress, and SOL purchases—without forcing users into raw CLI or explorer tooling. Without a coherent solana ico / token presale dapp foundation, DeFi Protocol Interface stakeholders faced fragmented tools, slow handoffs, and limited visibility—classic failure modes Tekvers designs against.
The solution
Tekvers delivered a Next.js Solana dApp with Wallet Adapter connect/disconnect, Anchor IDL-driven `buyWithSol`, on-chain progress reads, optional external auth, and marketing accordion sections on the home experience. Tekvers delivered a maintainable solana ico / token presale dapp system for DeFi Protocol Interface using Next.js 14, React 18, TypeScript, Tailwind CSS, with phased rollout, operator workflows, and documentation suited to long-term ownership.
Approach
Wallet-first UX
Wallet modal + multi-button connect/disconnect via Adapter providers and `useWalletMultiButton`, with toast feedback for mainstream crypto users—not only power users.
Anchor program wiring
Front-end purchase path maps to IDL instruction `buyWithSol` with accounts for buyer, receiver, ATAs, icoPda, and token/system programs; ATA creation runs when required before the buy.
Presale presentation + scoped extras
Countdown from `NEXT_PUBLIC_PRESALE_END_DATE`, progress from on-chain ICO PDA reads, marketing sections in `HomePage`, optional axios auth against localhost API, and an explicit chart placeholder—not a fabricated analytics product.
Deliverables
- ▸Next.js 14 React dApp with Tailwind styling
- ▸Solana Wallet Adapter suite (modal + multi-button connect)
- ▸Anchor `ico_program` IDL integration for live progress and `buyWithSol`
- ▸SPL token ATA creation path for buyers
- ▸SOL ↔ RHFI amount conversion UI (rate helper)
- ▸Presale countdown driven by public env end date
- ▸Optional wallet-signed signup/signin against external auth API
- ▸Home marketing/accordion UI and stub `/chart` route
Outcomes
- ▸Usable wallet-connected ICO participation surface for `$RHFI`
- ▸Clear demo path for on-chain progress and SOL purchases
- ▸Extensible UI boundary for future chart/admin features without claiming them as shipped
- ▸Typed Web3 stack suitable for protocol iteration
Impact
Rabbitholes Finance gained a credible product face—users connect a wallet, see live ICO progress, and buy with SOL inside the branded experience—while Tekvers kept chart and admin withdraw flows honestly scoped as IDL-only or stub.
Tech stack
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