A loyalty-program platform for small businesses — restaurants, salons, gyms. NestJS/PostgreSQL REST API with layered JWT plus role- and permission-based access control, OAuth social login, pluggable S3/Cloudinary media storage, and auto-generated Swagger docs.

• NestJS
• TypeScript
• PostgreSQL
• Docker

A Python service that spins up mock APIs straight from an OpenAPI/Swagger spec — customizable responses and simulated latency — so frontend and backend can be built and tested in parallel.

• Python
• OpenAPI
• REST API

A toolkit of installable skills that turn an AI coding agent (Claude Code, Cursor, …) into a mentor — tutoring, Socratic lectures, systematic debugging, code review, and mock interviews instead of just writing the code for you.

• Node.js
• TypeScript
• Claude Code
• CLI

An interactive Go CLI that brings coding katas to the terminal, letting you take on challenges across multiple languages — a focused tool for daily practice.

• Go
• CLI