A for-range over an unclosed channel leaks the receiver. Why three explicit receives are safe, why a range isn't, and catching it with Go 1.27's leak profile. Read more ›
A blog, notes, gallery, lifestyle and fully conglomerated posts from Joshua. Read more ›
Logical replication has been an integral part of Postgres since version 10 released in 2017. It's a very convenient system for synchronizing one or more tables from one running Postgres cluster to another, and the community has embraced it almost without reservation. It's a great feature we've all come to rely on.For all that, it has never been a flawless panacea. Perhaps the most glaring and conspicuous omission in Postgres logical replication is that of sequences. Novice users might run a l... Read more ›
Linux distributions that ship systemd as their init system now have a new version to track. The systemd 261 update adds a cloud metadata subsystem, carries process state through kexec reboots, and continues a long-running effort to load external libraries on demand. Cloud metadata gets a local interface systemd 261 adds an IMDS subsystem for cloud instance metadata. A daemon, systemd-imdsd, provides a local Varlink API that gives programs access to instance metadata services. A … More → The p... Read more ›
CapRover is an open-source, self-hosted Platform-as-a-Service that automates application deployment with Docker Swarm, Nginx, and automatic Let's Encrypt certificates. This guide deploys CapRover on Ubuntu 24.04 using Docker Compose, opens the required firewall ports, enables HTTPS for the dashboard, and deploys a sample app from the one-click marketplace. By the end, you'll have a CapRover PaaS running apps on subdomains of your wildcard root domain. Prerequisite: A wildcard DNS A record (e.... Read more ›
Information about the latest version of my highly accessible themes for GNU Emacs. Read more ›
Discover the top PostgreSQL 19 features, including built-in REPACK CONCURRENTLY, SQL property graph queries (SQL/PGQ), and logical replication updates. Read more ›
Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞 - fix(deadcode): move voicewake settings to sqlite · openclaw/openclaw@bdf81a8 Read more ›
Because of the simplicity of TFTP, and the difficulty I had using existing TFTP servers, I decided to write a honey pot TFTP server. This seemed like an easy, no consequences, way to try out my honey pot design principles. Read more ›
On June 11, 2026 AWS announced the AWS Workload Credentials Provider (AWS WCP), a client-side application that provides unified access to… Read more ›
Fewer pieces, fewer things to fix at 2am. Read more ›
Executive Summary: To eliminate race conditions in a high-concurrency ticketing system, I implemented PostgreSQL's FOR UPDATE clause for row-level database locking alongside Go worker channels for in-memory queue serialization. This approach completely prevents inventory over-selling by guaranteeing singular data mutation execution even under flash-sale load. If you have ever built an application that handles live event ticketing, flash sales, or limited-inventory drops, you know the dread of... Read more ›
Over at Ray on Emacs, Raymond Zeitler writes about the Emacs Diary for the June Emacs Carnival. The June topic is underappreciated Emacs built-ins and for Zeitler that’s Emacs Diary. He was a little disconcerted at first by being offered a blank screen for each entry. He wondered where his previous material went but he came to appreciate the fresh start that that blank buffer gave him. He goes on to describes some of the functions and capabilities of Diary. Read more ›
Your AI agent did exactly what it was designed to do. The framework underneath it just handed an attacker a shell on the box that holds your OpenAI key, your database credentials, and your CRM tokens.That is not a hypothetical. In a few months, three of the most widely deployed AI agent frameworks each turned a known, ordinary bug class into a way through. chained a SQL injection in LangGraph’s SQLite checkpointer to full remote code execution. Tenable and VulnCheck tracked a path traversal i... Read more ›
#606 — June 19, 2026 Read the Web Version Go Weekly How Go Reflection Really Works — Reflection in a compiled, statically-typed language sounds impossible, but Go can print a struct’s field names, types, and tags at runtime. This look into the Go runtime reveals how: the compiler leaves notes behind for reflect to pick up. Jesús Espino Catch Go Bugs Before Your PRs Merge — When AI writes more Go, the code may compile, but a missed error, goroutine leak, or broken handler contract can still s... Read more ›
is now available, letting users mount server and cloud storage as disks directly in on Windows. This update introduces support for Windows on ARM64, broadening compatibility with newer Windows devices. AWS users benefit from integration, which allows connections to with temporary credentials managed through corporate identity providers, reducing reliance on permanent access keys and improving security. Building on these enhancements, the release also enables connecting to Amazon S3 using the ... Read more ›
A microVM is a lightweight virtual machine with a minimal device model and a stripped-down virtual machine monitor (VMM), built to boot in milliseconds and run with very little memory overhead. It gives you the hardware-level isolation of a full VM (its own kernel, enforced by the CPU's virtualizati Read more ›