From interface
to a working
product.

The challenge

Connect course access purchases, learning materials and tutor support in a coherent user journey.

What's implemented

• Role-based dashboards for students, tutors and administrators.
• A drag-and-drop course editor and an HLS player with quality selection.
• Assignments with tutor review.
• Multipart uploads to S3 with progress tracking and retries for failed parts.
• SSR authentication, video processing queues and session refresh.

Payments are confirmed manually in the current configuration.

The challenge

Bring sales and teamwork together while keeping each company’s data and permissions separate.

What's implemented

• Leads, clients, deals, pipelines, tasks and a knowledge base.
• Server-side permissions and company data isolation.
• Conflict resolution that preserves the user’s draft.
• Bitrix24 and amoCRM imports, messaging and one-to-one WebRTC calls.
• An MCP interface with OAuth and permission levels for AI agents.

A functional MVP. One-to-one calls are implemented without TURN; support for all network configurations has not been verified.

The challenge

Make setup straightforward for users and give administrators clear control over subscriptions and infrastructure.

What's implemented

• Subscriptions, balances, top-up requests and account merging.
• Device-specific instructions and connection QR codes.
• Admin tables that preserve filters and state.
• Monitoring that distinguishes zero values from missing data.
• Containerization, GitLab CI and observability with Prometheus, Grafana and Loki.

Balance top-ups are requested through an administrator.

The challenge

Preserve photos and text labels through connection loss and restore the upload queue.

What's implemented

• Photo selection, preview and text labels.
• IndexedDB on the web; SQLite and WorkManager on Android.
• Checkpoints for multi-step uploads and queue recovery.
• Protection against concurrent session refresh and mixing account data.
• A debug APK build and integration with a separate backend against an API contract.

Remote uploads still require end-to-end verification. The application collects images and does not provide diagnostics.

The challenge

Help hosts run games with complex rules and preserve game state even with an unreliable connection.

What's implemented

• A five-step setup wizard with role assignment validation.
• Guided night actions, voting and a timer that recovers after restart.
• A local game engine and persistent state on Android.
• A synchronization queue with retries and revision tracking.
• Idempotent, transactional import of game snapshots on the server.

Built for the host of an in-person game. Synchronization is one-way, without collaborative editing.

The challenge

Give the business a website for collecting enquiries and let staff edit and publish content without working with code.

What's implemented

• Responsive services, pricing and reviews, with SSR and SEO markup.
• A shared form with validation, deduplication and field preservation after errors.
• A file-based queue with independent delivery retries for Bitrix24 and Telegram.
• A CMS with content schemas; publishing through a Git commit and CI.
• Atomic release switching, health checks and rollback.