MirahLabs Engineering Blog
Technical insights, architectural deep-dives, and system designs authored by our product engineers and AI research leads.
Python Web Scraping at Scale: Scrapy, Playwright, and Proxy Rotation
Extract data from complex websites. Build high-concurrency crawlers using Scrapy and handle dynamic JavaScript rendering with Playwright integration.
Redis Beyond Caching: Pub/Sub, Streams, Sorted Sets, and Distributed Locks
Redis is far more than an in-memory cache. Explore its lesser-known superpowers: Pub/Sub messaging, Redis Streams for event logs, sorted sets for leaderboards, and Redlock for distributed coordination.
Metaprogramming in Python: Metaclasses, Class Decorators, and Code Generation
Write code that writes code. Learn how to use class decorators, __new__ and __init__ overrides, and custom metaclasses to customize class creation dynamically.
Unit Testing Python Code with Pytest: Fixtures, Mocking, and Parametrization
Upgrade your testing workflows. Explore how Pytest's advanced features—fixtures, parameter matrix testing, and mock objects—speed up test execution.
PostgreSQL Performance Tuning: Indexes, Query Plans, and Connection Pooling
PostgreSQL is incredibly powerful but requires thoughtful configuration for high-traffic production workloads. This guide covers index strategies, query plan analysis with EXPLAIN, and PgBouncer connection pooling.