Adding Lookaround to Google RE2: A Proof of Concept
My fork that adds bounded lookaround to Google RE2 without backtracking, the #585 issue I opened, and what EPFL's unbounded lookbehind work showed me.
#performance
Posts
Modern Web UI Without a Framework: CSS and JavaScript
A modern web UI without a framework: container queries, :has() and CSS nesting, popover and dialog, Web Components, islands, and measuring Core Web Vitals.
Database Connection Pooling: SQLAlchemy and PgBouncer
Database connection pooling for PostgreSQL: SQLAlchemy 2 async pool settings, sizing limits per process, leaks, timeouts and PgBouncer transaction mode.
gRPC High-Performance APIs with Python asyncio
Service-to-service APIs with gRPC and Protobuf: grpcio asyncio server and client, streaming, deadlines, interceptors, schema evolution, HTTP/2 load balancing.
Elasticsearch Full-Text Search in Production
Full-text search with Elasticsearch 8/9 and the Python client: strict mappings, language analyzers, zero-downtime reindexing with aliases, shards, pagination.
Nginx Load Balancing, Caching and Hardening Guide
Nginx as reverse proxy and load balancer: micro-caching, rate limiting, HTTP/2 and HTTP/3, security headers and JSON logs. A practical guide for nginx 1.30.
Python Image Processing: Pillow or OpenCV?
Image processing in Python with Pillow 11+ and OpenCV 4.x: safe uploads, EXIF rotation, WebP, headless OpenCV in Docker and a background processing pipeline.
Python asyncio in Practice: TaskGroup, Timeouts, Semaphores
A practical Python asyncio guide: TaskGroup, asyncio.timeout, Semaphore, to_thread, except* and what Python 3.12 to 3.14 changed, with runnable examples.
Python Performance Profiling: cProfile, py-spy, Scalene
A practical guide to Python performance profiling: cProfile for functions, py-spy for live processes, Scalene for line-level CPU and memory, plus memray.
MongoDB Schema Design with Python and Async PyMongo
MongoDB schema design in practice: embed or reference, schema validation, ESR index ordering, aggregation and transactions, with Python's async PyMongo API.
SQLAlchemy 2.0 with MySQL: Async ORM, N+1 and Alembic
SQLAlchemy 2.0 with MySQL and PostgreSQL: typed Mapped models, async sessions, eager loading against N+1 queries, Alembic migrations and connection pool tuning.
Redis Caching and Session Management in Python
Redis caching and session management with redis-py asyncio: cache-aside with stampede protection, server-side sessions, Streams, locks and eviction policies.
Fast Crypto Analysis in pandas 3: Vectorize, Then Polars
Crypto OHLCV analysis in pandas 3 without loops: the real cost of iterrows and apply, rolling signals, sane dtypes, Parquet, and a measured Polars test.
Polygon PoS Architecture and Layer 2 Scaling Explained
How Polygon PoS works: Bor, Heimdall v2, checkpoints, POL and ~5-second finality. How it differs from rollups, the zkEVM shutdown, and notes for developers.
Solidity Security and Gas Optimization: A Practical Guide
Reentrancy, access control, proxy pitfalls, oracle manipulation and gas optimization in Solidity 0.8 with OpenZeppelin 5, plus Foundry tests and a checklist.
