Serhii Nesterov

Software engineer. Smart Contract and Backend developer

  • One CLI for the crypto world — built for AI agents, pleasant for humans. Prices, balances, gas, DeFi protocols and Hyperliquid perps from a single tool, zero API keys.

    Python · CLI · EVM + SolanaSourceVisitPyPI
  • Telegram bot for price alerts on tokens, CEX pairs, market caps and NFT floors. Send /alert BTC 10% and it messages you when BTC moves 10%.

    Python · aiogram · PostgreSQL · RedisSource
  • Font and theme picker for Ghostty. It renders inline specimens through the Kitty graphics protocol, previews every built-in theme, and applies either with one key and a live reload.

    TypeScript · Bun · Terminal UI · macOSSource
  • Hyperliquid market intelligence built from public, real data: HYPE buybacks, ETF flows, TWAPs, staking, team wallets, and live account executions over interactive candles.

    TypeScript · TanStack Start · Bun · HyperliquidVisit
  • Crypto research agent. Drop a ticker or a contract address and get a structured breakdown in seconds: on-chain data, socials, news, red flags.

    TypeScript · Next.js · AI agentsVisit
  • Live visualizer for whatever your Mac is playing. It taps the output mix, so Spotify, a call or a game all work the same. Lives in the menu bar — six modes, ten palettes, no dock icon, no account.

    Swift 6 · SwiftUI · Metal · macOSSourceVisit
  • Media editing toolkit with one Python core and three faces: a CLI with interactive TUI, an HTTP API, and a Telegram bot. Crop, compress, convert, cut — same pipeline everywhere.

    Python · FastAPI · aiogram · FFmpegSourceVisit
  • Self-hosted toolbench, every format you need: file conversion, PDF tools, media downloader, URL screenshots, DNS dig, IP inspector, speed test and a private pastebin. Files never leave your machine.

    TypeScript · TanStack Start · Bun · FFmpegSourceVisit
  • Self-hosted personal finance tracker: expenses, income and subscriptions with charts and customizable themes.

    TypeScript · React · Node.jsSourceVisit

© 2026 Serhii Nesterov