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Notes on LLM integration, AI automation, full-stack development and running it all on your own servers.
GitHub Actions SSH Deploy: Permission Denied
GitHub Actions SSH deploy failing with Permission denied (publickey)? Here is the real cause -- a corrupted key -- and the fix that actually works.
AI Code Review Prompt for Laravel PRs
A structured AI code review prompt that actually catches Laravel-specific bugs like mass assignment and N+1 queries, instead of generic AI praise.
pgvector vs Pinecone for Node.js Embeddings
pgvector vs Pinecone for Node.js apps: when Postgres vector search beats a dedicated vector database, with real code and a clear recommendation.
Shopify API Rate Limit Error: The Real Fix
A Shopify API rate limit error means you've hit the leaky bucket limit on REST or GraphQL. Here's why it happens and the fix that holds up at scale.
Fix WooCommerce Cart Fragments Slowing Your Site
WooCommerce cart fragments slow? Here is why the get_refreshed_fragments AJAX call bypasses your cache and the fix that keeps the mini-cart working.
MySQL Lock Wait Timeout Exceeded in Laravel
Still retrying jobs after a MySQL lock wait timeout exceeded error? Here's how to find the real blocking query in Laravel and fix it for good.
Fixing OpenAI API Timeouts in Laravel Jobs
OpenAI API calls timing out inside your Laravel queue? Here's why jobs fail mid-request and how to set timeouts that actually agree with each other.
AI Refactoring: Breaking Up a God Class
A real AI refactoring workflow for breaking up a legacy god class safely: the prompts that work, and the ones that quietly break production.
Stream OpenAI API Responses in Node.js with SSE
Learn how to stream OpenAI API responses in Node.js using Server-Sent Events, with real Express code and the mistakes that break streaming in production.
React 'Maximum Update Depth Exceeded' Fix
Fix React's Maximum update depth exceeded error for good: the two real causes, render-time setState and unstable useEffect deps, with working code fixes.
How to Reduce Your OpenAI API Costs
Learn how to reduce your OpenAI API costs by cutting prompt token bloat, not quality, with a measurable code example and practical fixes today.
How to Upload Files in React and Node.js
A step-by-step guide to handling file uploads in a full-stack app: multipart form data in React, Multer on the Node.js API, and the mistakes that break it.
How to Fix Slow Zsh Startup Time
Fix slow zsh startup time by profiling with zprof, then resolving the real causes: compinit, eager tool sourcing, and bloated plugin lists today.
Fix OpenAI API Rate Limit Errors in Node.js
Get 429 rate_limit_exceeded errors from the OpenAI API in Node.js? Here is the real fix: exponential backoff, retry-after handling, and concurrency limits.
Fix PHP 'Allowed Memory Size Exhausted'
PHP Allowed memory size exhausted fatal error, explained: what triggers it, the quick php.ini fix, and the chunk()/cursor() code fix that stops it recurring.