Flagship systems

Complete product systems — not isolated demos.

These are full systems: local AI workspaces, payment-driven commerce, privacy-first mobile + serverless backends, offline-first B2B workflows, productized AI tooling, and the developer extensions we build to ship them. Each one connects product, architecture, execution and operations — designed and built end-to-end by Crovyx.

Crovyx product systems — local AI, mobile, desktop, payments, backends and developer tooling
Local AI · mobile · desktop · serverless backends · payments · admin operations · developer tooling.
Featured systems

Flagship products built end-to-end.

Each system below is a real product surface, not a slide. They span local-first AI, payments and admin operations, privacy-first cross-device flows, offline-first B2B workflows, productized AI document tooling, and the developer extensions Crovyx uses to ship faster.

Local AI · Android · Wear OS · Windows

Platinum AI Notes

A 100% local, no-account AI productivity ecosystem across phone, watch and Windows desktop. Local voice capture, on-device transcription, a separate local Smart Note LLM lane on desktop, private local sync and portable backups — the AI lives next to the data, not in someone else's cloud.

Commerce · Stripe · Cloudflare · Media

Songift

A full digital-commerce system for personalized song gifts. Bilingual order intake, Stripe checkout sessions, webhook-driven order and payment state on Cloudflare, admin delivery operations, customer/admin email dispatch, and a local desktop Render Studio for lyric, subtitle and overlay video assets.

Android · Web · Cloudflare Workers · D1

Park Contact

A privacy-first vehicle contact system where QR/token web entry, backend thread state and Android push notifications cooperate without ever exposing the owner's personal contact details. Cloudflare Worker dispatch, D1 schema, reports, blocks, audit events and rate-limited tokenized flows.

Offline-first · B2B workflow · Local schema

AccountOS

An offline-first B2B workflow system for accounts, contacts, documents, quote review and proposal generation. Deep local SQLite schema, confidence and row-status handling on imported quotes, manual correction, and CSV/PDF proposal export — built around how the business actually operates.

AI workflow · Local-first · Document generation

AI Resume Creator

A structured AI workflow that turns messy source material into reviewable resume and portfolio drafts. OpenAI-compatible extraction with API testing and timeout handling, fallback draft generation, diagnostics, project save/restore and a review loop — the foundation for a productized resume website and PDF.

VS Code extensions · Internal tooling

Developer Workflow Tools

A trio of in-house VS Code extensions: a research and explain-selection agent, a design-to-code workflow with static export and manifest generation, and an automation utility with logging, validation and safer command execution. Crovyx builds its own production tooling, not just end-user apps.

Android · Room · Play Billing

TaxiMetrix

A specialized Android app for taxi operators — day entries, expenses, recurring fees, fuel snapshots, premium unlock via Google Play Billing and a full backup/import/export round-trip. Practical Android execution, local persistence and real business-domain logic.

Selected supporting builds

Range, not filler.

Smaller systems that show Crovyx works across Android, Windows desktop, backend APIs and the brand-and-site layer — not just the flagship products.

  • Easy Image Converter — desktop batch image converter with quality/resolution profiles, EXIF preservation, HEIF support and upscale-risk checks.
  • File Converter — Android multi-format converter with queued batch processing, conversion-engine routing and persistent Room history.
  • Advanced Markdown Editor — Windows markdown editor with live preview, autosave, settings persistence and trusted-HTML controls.
  • Utility Calculator — Android utility-bill calculator with tariff presets, strict-rule validation, history and monthly reminders.
  • CRO Shopping API — Fastify commerce-search backend with merchant ingestion, product/offer schema, and admin merchant routes.
  • Tetrix — Android Tetris-style game engine with seven-bag queue, hold mechanics, scoring, combos and pause/resume.
  • Personal & business sites — multilingual portfolio, CV and brand sites with theme/locale behavior and validated inquiry capture.
  • Private platform work — additional internal systems not shown publicly. Available on request under NDA.
How we build

AI-augmented workflow, full-stack ownership.

Crovyx combines AI agents, local models, custom VS Code extensions and in-house automation with full-stack engineering across web, mobile, desktop, serverless backends and payments. The result is the depth above — complete systems shipped without an agency middle layer.

01

Architect. Define the real product outcome, the system boundaries, and the smallest scope that proves the architecture works under real conditions.

02

Build with leverage. AI-augmented implementation, custom tooling and validation layers compress the path from idea to working software across the stack.

03

Operate. Telemetry, admin operations and backup/recovery are designed in — not bolted on once a real user is depending on the system.

Your project Have a system this serious in mind? Let's talk.

Internal platform, customer-facing product, AI layer over an existing operation, or a rebuild of something that has outgrown its current stack — Crovyx is built for end-to-end systems work and is happy to look at it honestly.