All posts

19 articles about software engineering, cloud, and web development.

.NET & C# August 3, 2026 · 11 min read

Scaling Out SignalR: In-Memory State Behind a Load Balancer

Extra servers behind a load balancer silently split our SignalR presence into one reality per server. The fix: a Redis backplane plus shared state.

#signalr #dotnet #redis

Databases July 28, 2026 · 10 min read

Postgres Index Types Explained: B-tree, GIN, BRIN, and the Operators That Pick Them

A practical tour of PostgreSQL index types with real query plans: how B-tree, GIN, and BRIN work, what operator classes are, and how the operators in your WHERE clause decide which index you need.

#postgresql #indexes #performance

Databases July 27, 2026 · 10 min read

Postgres JSON vs JSONB: Storing Data Chunks for AI Processing

The real differences between JSON and JSONB in PostgreSQL, how each one stores your data, when plain JSON wins, and how JSONB earns its place holding chunk metadata in an AI pipeline.

#postgresql #jsonb #json

Security July 13, 2026 · 8 min read

How I Caught a Bot Swarm Hiding in My PostHog Analytics

A real story of detecting bot traffic with PostHog: how a viewport that did not match the screen size gave the crawlers away, and how I pinned them again once they patched that tell using user agent, OS, synthetic referrers, and sub-second event bursts.

#posthog #bot-detection #analytics

Tooling July 11, 2026 · 13 min read

Claude Code as an Orchestrator: Using Cheaper Models to Ship Real Projects

A practical guide to running Claude Code like a small team: a strong orchestrator model that delegates design, implementation, review, and testing to cheaper, faster subagents. With ready-to-copy .md files.

#claude-code #ai-agents #tooling

.NET & C# February 15, 2026 · 12 min read

Middleware in .NET Explained: How the Pipeline Actually Works (and Common Mistakes)

Understand how the ASP.NET Core middleware pipeline works under the hood, learn to write custom middleware correctly, and avoid the mistakes that cause silent bugs in production.

#dotnet #csharp #middleware

Databases October 16, 2025 · 18 min read

PostgreSQL Mistakes You're Probably Making (And How to Fix Them)

A comprehensive guide to avoiding common PostgreSQL pitfalls that can compromise performance, data integrity, and maintainability.

#postgresql #databases #sql

.NET & C# September 29, 2025 · 4 min read

Why You Should Start Using Visual Studio Code for Your .NET Projects

A step-by-step walkthrough of creating, running, and serving a .NET Web API entirely from Visual Studio Code, with no full Visual Studio required.

#dotnet #csharp #vscode

.NET & C# September 28, 2025 · 9 min read

How to Implement API Versioning in .NET Core Web APIs: Best Practices and Migration Guide

Learn how to implement API versioning in .NET Core Web APIs, avoid breaking changes, and migrate existing services safely.

#dotnet #csharp #api-design

JavaScript & React September 24, 2025 · 11 min read

React useState Anti-Patterns Every Reviewer Should Flag

From duplicated state to broken hooks — how to spot and fix the most common useState mistakes in React pull requests.

#react #javascript #hooks

JavaScript & React September 22, 2025 · 3 min read

React Canary Activity: Hide UI Without Unmounting and Preserve State Instantly

Learn how React's new <Activity /> component hides elements without losing state or effects — now available in the Canary release.

#react #javascript #frontend

AWS September 2, 2025 · 10 min read

AWS IAM Roles Explained: Best Practices for Secure Service Permissions

Learn AWS IAM Roles: how they differ from users, how AssumeRole works, and how to use them for EC2, Lambda, cross-account, and federation.

#aws #iam #security

AWS September 1, 2025 · 11 min read

AWS IAM Explained: Users, Groups, Policies, MFA, and Best Practices

Learn AWS IAM basics: users, groups, JSON policies, MFA setup, root account security, and the least privilege principle.

#aws #iam #security

.NET & C# August 31, 2025 · 9 min read

Async vs Parallel in .NET Explained: Stop Mixing Them Up

Learn the difference between asynchronous I/O and true parallel execution in C#, and when to use each for scalable apps.

#dotnet #csharp #async

.NET & C# August 28, 2025 · 10 min read

.NET API Pagination Explained: Offset vs Keyset vs Cursor Strategies

Learn the three main pagination strategies in .NET APIs — Offset, Keyset, and Cursor — with real-world use cases and tips using Record DTO.

#dotnet #csharp #api-design

Tooling August 27, 2025 · 10 min read

Borrowing in Rust: How It Works Under the Hood and Why It Matters

Understand Rust borrowing, ownership, and the borrow checker with examples of immutable vs mutable references and memory safety.

#rust #memory-safety #programming-languages

JavaScript & React August 27, 2025 · 9 min read

TypeScript Logging from Scratch: Isomorphic, Performant, and Extensible

How to build a fast, lightweight, isomorphic logger in TypeScript with custom transports, performance tuning, and extensible design.

#typescript #logging #nodejs

.NET & C# August 21, 2025 · 23 min read

6 Entity Framework Core Performance Pitfalls (and How to Fix Them)

Avoid these 6 common Entity Framework Core performance pitfalls in .NET — with real-world scenarios, root causes, and refactors.

#dotnet #csharp #entity-framework

.NET & C# August 20, 2025 · 9 min read

CancellationToken in .NET: A Complete Guide with API Examples

Learn how to use CancellationToken in .NET APIs for better performance, graceful shutdowns, and responsive code with real-world examples.

#dotnet #csharp #api-design