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Building a Custom PostgreSQL WAL Receiver: A Developer's Technical Journey

A Long Story about how I dug into the PostgreSQL source code to write my own WAL receiver, and what came out of it Some thoughts are unpredictable. For example: “I wonder how pg_receivewal works …

technologyprogrammingdatabase development

medium.com·Hacker News: Front Page·3mo ago·15 min read

Analyzing UDP Packets from Electrical Signals to Network Protocol Decoding

UDP is a transport-level protocol for sending messages through an IP network.

technologyprogrammingnetworkingmattkeeter.com·Hacker News: Front Page·4mo ago·26 min read

Technical Guide: Remotely Unlocking Encrypted Hard Disks by Modifying Boot Process

what's a few systemd services in initramfs between friends?

technologyprogrammingsystem administration

jyn.dev·Hacker News: Front Page·4mo ago·7 min read

Technical Report: Using Predicate API for AI Web Automation Verification

Tutorials and insights on optimizing AI agents for web automation, visual cues, screenshot delivery, and reducing LLM costs.

Newstechnologyprogrammingai automation

sentienceapi.com·Hacker News: Front Page·5mo ago·10 min read

Technical Report: Using Predicate API as Verification Layer for Reliable AI Web Automation

Newstechnologyprogramming

sentienceapi.com5mo ago

Building the Bun JavaScript Runtime from Source: A Bootstrapping Journey

My journey building the Bun JavaScript runtime from source.

technologyprogramming

walters.app5mo ago

Claude AI Deprecates Ultrathink Keyword, Replaces with Extended Thinking System

Insighttechnologyprogramming

decodeclaude.com6mo ago

Understanding Raw Camera Sensor Data: How Unprocessed Photos Appear as Gray-Scale Values

technologyeducation

maurycyz.com6mo ago

Building MacThrottle: A macOS App to Detect Thermal Throttling

technologyprogramming

stanislas.blog6mo ago

Developer's Experience Building a Telegram Clone with Qt, QML, Rust, and C++

Insighttechnologyprogramming

kemble.net7mo ago

Technical Guide: Converting Text to 3D Meshes for Rendering and Manipulation

I recently had a desire to convert text to 3D meshes that I could render and manipulate as part of my Geotoy project and Geoscript language. I did some research into tools and libraries that could solve different pieces of this, and I put together a pipel

technologyprogramming3d graphics

cprimozic.net·Hacker News: Front Page·7mo ago·8 min read

Guide to Renewing GPG Subkeys in 2025: Simplified Process for Key Management

It is that time of year again when my gpg signing and encryption subkeys expire. I wrote about how to renew them before, but it was a long time ago and the process has gotten simpler thanks to advancements in gpg user friendliness. Here are the steps I ta

technologysecurity

entropicthoughts.com7mo ago

Building a Vulkan Game Engine: A 3-Month Learning Journey with Practical Implementation

technologyprogramming

edw.is7mo ago

Building a Simple Search Engine from Scratch: A Practical Alternative to Complex Solutions

technologyprogramming

karboosx.net8mo ago

Migrating Specific Tables Between PostgreSQL Instances Using Logical Replication

technologyprogramming

ananthakumaran.in8mo ago

Building a Custom PostgreSQL WAL Receiver: A Developer's Technical Journey

How to Modify FileZilla to Connect to Bambu 3D Printer's FTP Server

Guide to Running Google Gemma 4 AI Model Locally with LM Studio CLI on macOS

Technical Guide: Building a Blog with Elixir, Phoenix, and NimblePublisher

Analyzing UDP Packets from Electrical Signals to Network Protocol Decoding

Technical Guide: Remotely Unlocking Encrypted Hard Disks by Modifying Boot Process

Technical Report: Using Predicate API for AI Web Automation Verification

Technical Report: Using Predicate API as Verification Layer for Reliable AI Web Automation

Building the Bun JavaScript Runtime from Source: A Bootstrapping Journey

Claude AI Deprecates Ultrathink Keyword, Replaces with Extended Thinking System

Understanding Raw Camera Sensor Data: How Unprocessed Photos Appear as Gray-Scale Values

Building MacThrottle: A macOS App to Detect Thermal Throttling

Developer's Experience Building a Telegram Clone with Qt, QML, Rust, and C++

Technical Guide: Converting Text to 3D Meshes for Rendering and Manipulation

Guide to Renewing GPG Subkeys in 2025: Simplified Process for Key Management

Building a Vulkan Game Engine: A 3-Month Learning Journey with Practical Implementation

Building a Simple Search Engine from Scratch: A Practical Alternative to Complex Solutions

Migrating Specific Tables Between PostgreSQL Instances Using Logical Replication