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Mutual TLS (mTLS) from Scratch with OpenSSL and Nginx

Build a private Certificate Authority, issue client certificates, and enforce cryptographic two-way authentication at the Nginx reverse proxy layer.

Private Site-to-Site Mesh with WireGuard and Self-Hosted Headscale

Build a self-hosted WireGuard mesh network using Headscale as an open-source control plane for Tailscale clients. Connect VPS instances, homelabs, and local machines without public IPs.

Injecting hardware cameras into the iOS simulator using IOSurface

Handling Network Requests Gracefully

Network calls fail. Clients retry. Here is how to handle duplicate requests without charging your users twice.

Configuring Nginx for Reverse Proxy

A quick guide on how to set up Nginx as a reverse proxy for your backend applications.