Abbosbek Azizov

Multi-tenant QR-menu SaaS for cafes and restaurants, in Uzbek, Russian and English.

• Decided what it had to do, built it with AI coding assistants, put it on a VPS and keep it running: an order reaches the waiter assigned to that table over a React Native app and web push, three Docker containers behind Caddy on an Oracle Cloud VPS.
• Noticed the live view counter double-counting — two guests opening a menu at the same moment created two counters — and saw the fix through: one migration merged the rows and repaired the constraint.
• 519 tests across 25 files guard what would cost a customer money: four prove one venue cannot read another venue's data, one fails the build if the models and the migrations drift apart. 19-table PostgreSQL schema, 24 migrations, no data lost.

StackPythonFastAPIPostgreSQLSQLAlchemyAlembicDocker

Fifteen PDF tools, explained in Uzbek.

• Merge, split, compress, rotate, edit, watermark, protect and unlock PDFs, and convert to and from Word, PowerPoint and JPG, plus Excel to PDF — all behind one REST API.
• Accounts with hashed passwords, Google sign-in and an admin view of users and usage. Free use is capped at 3 files a day and 20 MB an upload; a paid tier lifts both.
• An uploaded file lands in a temporary directory and a scheduled job deletes it — nothing a visitor uploads is kept.

StackPythonFastAPISQLAlchemypypdfJWTnginx