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1. budget-tg-manager-appbudget-tg-manager-appPublic

   Telegram finance bot: bank CSV import (Tinkoff/Alfa), AI spending analysis with RAG memory, React dashboard, Celery workers, full Docker Compose infra.

   TypeScript 2

2. Web-Calculator-JavaWeb-Calculator-JavaPublic

   Scientific calculator with C++17 RPN engine exposed via JNI to a Spring Boot web UI - supports expressions, graph plotting, and loan calculations.

   C++ 1

3. STL-ContainersSTL-ContainersPublic

   My implementation of the standard template STL containers.

   C++

4. info-webinfo-webPublic

   REST CRUD API for peer-review school data (peers, tasks, checks) - raw Jakarta Servlets + manual JDBC + HikariCP, no ORM or frameworks.

   Java

5. Key-Value-StorageKey-Value-StoragePublic

   In-memory key-value store with hash table and BST backends, optional TTL expiry, partial updates, and bulk import/export - built from scratch in C++17.

   C++

6. images-storageimages-storagePublic

   Image storage web app with JWT auth, token blacklisting, role-based access (USER/ADMIN), and images stored as bytea in PostgreSQL.

   Java