Code Snippets
Working code you can lift straight into a project: shell, Python, TypeScript, Terraform. Each snippet says what it does and where it bites.
Redis Caching Patterns: Cache-Aside, Write-Through & Cache Invalidation
- Backend
- Performance
- 07 Apr 2026
- 05 Mins read
Need to scale your backend without throwing money at servers? Start with Redis caching patterns. Most databases can handle hundreds of queries per second, but thousands? Your app slows to a crawl
PostgreSQL Query Optimization: Indexes, EXPLAIN ANALYZE & Execution Plans
- Database
- Performance
- 29 Mar 2026
- 04 Mins read
Need to optimize slow PostgreSQL queries? Use EXPLAIN ANALYZE and targeted indexing. Slow database queries kill application performance. Most developers don't know where the actual bottleneck is,
Top 7 Open Source OCR Models for Document Processing
- Ai ml
- Computer vision
- 09 Jan 2026
- 04 Mins read
AI Tool Turn your documents into accurate digital copies with these open source OCR models. Instead of fighting messy text extraction, you get clean markdown from PDFs, images, and scanned docume
Why printf Beats echo in Linux Scripts
- Shell scripting
- Devops
- 02 Jan 2026
- 03 Mins read
Scripting Tip A script that works on your machine can produce different output on another system. The output command is often the reason. printf behaves the same way across shells, and echo d
Essential Bash Variables for Every Script
- Shell scripting
- Devops
- 26 Dec 2025
- 07 Mins read
Overview Quick Tip You know what's worse than writing scripts? Writing scripts that break every time you move them to a different machine. Built-in Bash variables fix that. The problem wi
Per-App Shell History for Bash
- Shell scripting
- Productivity
- 18 Dec 2025
- 02 Mins read
Organize your Bash history per terminal app. Ever jumped between iTerm2, Ghostty, and VS Code's terminal only to have your command history get all mixed up? This Bash snippet keeps things clean b
Per-App Shell History for Zsh
- Shell scripting
- Productivity
- 18 Dec 2025
- 02 Mins read
Organize your shell history per terminal app. Ever jumped between iTerm2, Ghostty, and VS Code's terminal only to have your command history get all mixed up? This Zsh snippet keeps things clean b
Optimizing your python code with __slots__?
- Python
- Productivity
- 16 Jul 2025
- 04 Mins read
Memory optimization with slots Understanding the problem Optimizing data models in big data workflows with slots In big data and MLOps workflows, you often work with massive