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Blockchain & Web3

Smart contracts, wallet flows, indexers, and Web3 UX for products with onchain logic.

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/ scope

What the work includes

Smart contracts and protocol integration
Wallet onboarding and transaction UX
Indexers, data sync, and backoffice flows
Audit-ready architecture and test strategy

/ stack

Technology focus

SolidityEVMWalletConnectIndexersWeb3

How 01.DEVS joins

We start with a short discovery, define risks, priorities, and the delivery plan, then move in iterations with transparent communication and a production focus.

/ questions

What to know before starting

Which parts of a product should be onchain?

Those that need blockchain properties and serve a clear user requirement. Search, analytics, administration and interfaces can have separate offchain components. Define these boundaries before choosing tools.

Is a smart-contract audit included in development?

Tests, documentation and preparation for review can be included in scope. An independent audit is different from internal code review; its coverage and provider need a separate agreement.

What matters in a wallet journey?

Show the network, action and expected conditions. Distinguish signature cancellation, submission and transaction outcome. Help the user recover context after an error or reopening the application.

/ related cases

Cases in this direction

HyperEVM DEX aggregator

ht.xyz

A HyperEVM DEX and DEX aggregator built on a custom aggregation protocol between HyperEVM and HyperCore. The project closed in November 2026 following a change in the company’s strategic direction.

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Telegram Mini App

GrandCombat MiniApp

A high-load Telegram Mini App: 4M users in 4 months, up to 100,000 users online at once, and the full game flow inside Telegram.

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Telegram trading Mini App

Telegram MiniApp

A Telegram app for learning and trading sessions: users pass onboarding, receive signals, train, and see results.

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Related insights

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