Our work.

Apps, websites and services we came up with and built. Every project has a page with its screens and a breakdown of how it works.

All work

Websites, apps, games and engineering projects by the studio. Each comes with screens, a story and a drawing of how it works.

  1. ZazhigalkaiOS app A guest app for a nationwide bar chain: table booking, every bar on a map and a one-time QR code at the door. Swift · SwiftUI · MapKit
  2. TetratSubscription web app A browser studio for a handwriting plotter: text with formulas and graphs turns into handwriting and is written in pen on paper. React · TypeScript · Vite
  3. LunaraWeb service, our own product A personal space for self-reflection: destiny matrix, natal chart, Tarot and shifting in one workspace, with an AI dialogue that remembers context. React · TypeScript · Spring Boot
  4. The artists’ card indexArchive website An archive of musicians where every artist gets a design system of their own, and the home page is a real card index drawer. Astro · TypeScript · CSS 3D
  5. IronworksGame for iPhone and iPad A factory-building strategy for iPhone and iPad: drills, belts and arms on a procedural map that holds 120 frames a second. Swift 6 · SpriteKit · SwiftUI
  6. DIFBarbershop website, mockup A redesign for a men’s barbershop in Saint Petersburg: six variants on one shared component library. React · TypeScript · Vite
  7. netbankFintech prototype A ledger where the operator cannot move a client’s money: the client’s signature, a quorum of witnesses and balance proofs checked in the browser. C++20 · Monocypher · Ed25519
  8. PriyomnayaA workspace for a deputy’s office Residents’ requests, legal reply deadlines, letters to the responsible organisations and the deputy’s signature in one calm workspace. React · TypeScript · Node.js
  9. Dela RyadomA catalogue site with a map A catalogue of what changed in Saint Petersburg’s districts: schools, clinics, squares and courtyards. Every item has an address, a date and a source link. React · TypeScript · OpenStreetMap
  10. SellerOSAnalytics for marketplace sellers Ozon, Yandex Market and Avito in one financial model: profit across marketplaces and “cause, action, effect in rubles” cards. Java · Spring Boot · PostgreSQL
  11. FileSweepDesktop app Finds exact duplicate files and large files on a disk. It never deletes on its own: everything goes through an action plan with undo. Go · Wails · React
  12. Secure MessengerA secure messenger prototype A C++20 prototype: every message is signed and encrypted, and forgeries, replays and impostors are rejected. C++20 · OpenSSL · SQLite
  13. cryptolabCrypto market analysis, Python and C++ Textbook econometrics for the crypto market: volatility, market regimes and an honest answer about whether a forecast has an edge. Python · C++ · pybind11
  14. LedgerCoreAccounting service Double-entry accounting: postings, balances and reversals. A repeated command returns the original result, and competing withdrawals lock the accounts before the balance check. Java · Spring Boot · PostgreSQL
  15. EventRelayPayment service A payment and its event are stored in one transaction and published to Kafka through an outbox. The consumer remembers processed events, so a repeated delivery changes nothing. Java · PostgreSQL · Kafka
  16. LoanPlanCalculation library Loan repayment schedules in whole cents: annuity, differentiated and interest-only, three day-count bases and early repayments. The last payment carries no rounding tail. C++ · CLI
  17. PayMatchPayment reconciliation Reconciles internal payments with a bank statement: matches, amount differences, missing rows and duplicates. An ambiguous pair stays ambiguous instead of going to whichever row came first. Python · PostgreSQL
  18. BankGuard1C statement checker Checks 1C and client-bank exchange files before import: a truncated statement, a repeated document, totals that don’t add up. The source file is never changed. Python
  19. CatalogLintCatalog export checker Checks a CommerceML export before it reaches an online store: prices with no product, duplicates, and a partial export that looks like a mass deletion. Python
  20. DropOnceFile transfer Sends a file by a link and QR code that expire: over the local network, through a tunnel, via a relay or directly between apps with X25519 and ChaCha20-Poly1305 encryption. Go · Wails · React

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