Node.js Dropped --experimental-transform-types: What Breaks and How to Fix It
Node.js 26 (and 24.12+/25.2+) removed --experimental-transform-types. Here's exactly why your TypeScript enums broke and how to fix them.
13 min readZeeshan Tofiq
Knowledge base
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Guides, tutorials, and references for software developers, from frontend to infrastructure.
Testing PostgreSQL RLS Policies With Jest (No pgTAP)
Test PostgreSQL row-level security with Jest and node-postgres, no pgTAP required. Catch tenant isolation bugs in CI before a bad grant reaches production.
14 min readZeeshan Tofiq
Mongoose 9 Migration Guide: What Actually Breaks in a Real MERN App
Upgrading to Mongoose 9? Here's what actually breaks in real MERN apps: pre-save hooks, plugins, TypeScript types, and how to fix each one.
12 min readZeeshan Tofiq
Kubernetes Swap Support: Should You Turn It On in 1.35?
Kubernetes swap went stable in 1.35. Here's how it actually works, when it helps, when it hurts, and how to configure LimitedSwap correctly.
12 min readZeeshan Tofiq
Rust Async Traits Still Aren't Object-Safe: The Real Fixes
Async fn in traits still isn't dyn-compatible in Rust. Here are the three real workarounds (enum dispatch, async-trait, RPITIT) and when to use each one.
14 min readZeeshan Tofiq
Go 1.26 Goroutine Leak Detection: A Practical Guide
Go 1.26 ships a real goroutine leak profiler. Here's how to enable it, read the profile output, and catch leaks in production before OOMKilled does it for you.
13 min readZeeshan Tofiq
Claude Code Skill Not Triggering? Every Cause and the Fix (2026)
Your Claude Code skill isn't triggering and there's no error. Here's every cause: paths, YAML, descriptions, and the hidden character budget.
14 min readZeeshan Tofiq