Self Hosting

What You Can Self-Host on Oracle Cloud Free Tier (2026)

What actually fits on Oracle Cloud free tier after the June 2026 cut: Ghost, Vaultwarden, Syncthing, monitoring, and a small AI model, sized in real RAM.

Artificial intelligence

Ghost in the Shell Predicted Prompt Injection in 1995

Ghost Check #1: the Puppet Master hacked minds by exploiting the gap between what a system experiences and what it can verify. Thirty-one years later, a researcher did the same thing to Microsoft 365 Copilot with a single email.

Self Hosting

How to Self-Host a Discord Bot: Building and Running Your Own Bot 24/7

There's a moment every Discord bot developer remembers, even if nobody makes a big deal of it. You run node index.js, switch over to Discord, type a command, and your own code answers back. It's a small thing to get excited about, and it never

Artificial intelligence

The Complete Self-Hosted AI Stack for 2026

Building a local AI server is more than installing Ollama. This guide builds a full production AI stack with Open WebUI, LiteLLM, Qdrant, Traefik, and Langfuse — what each component does, why it's needed, and three complete Docker Compose configurations for beginners, power users, and small teams.

Cryptography

RSA Is Simple. Deploying RSA Correctly Almost Never Is.

The capstone to our RSA series. The math checks out. Shipping it as written gets you breached. This is the nineteen-year-old attack that proves it, and what belongs in production instead.

Cybersecurity

Claude Mythos vs. HAWK and AES: What It Found

Claude Mythos halved HAWK's effective key strength and sped up an AES attack 200-800x. What the math actually shows, and what it doesn't mean yet.

Programming

JDK 27 New Features Explained: What Actually Changes

JDK 27 ships nine JEPs, but only a few actually change your code today. What's default now, what's still preview, and what to do about each one now.

Self Hosting

Self-Host OpenClaw: VPS Setup to Production (2026)

Self-host OpenClaw from zero to production. Server provisioning, SSH lockdown, Docker, reverse proxy, Fail2ban, performance tuning, and full backup strategy in one guide.

Artificial intelligence

OpenClaw Is Running on Your Machine Right Now. Here's What to Lock Down Before It Eats Your Credentials.

Here's the complete patch-status and lockdown guide, including the systemd hardening, origin validation, env-variable command injection fix, ClawHub skill safety, and how to tell if you've already been hit.

Artificial intelligence

Claude Opus 5 Launches at Half the Price of Fable 5, and Anthropic's Efficiency Claims Have a Track Record Problem

Anthropic shipped Claude Opus 5 today: near-Fable 5 scores, a five-level effort dial, half the price. History says verify the token math before you trust it.

Web Development

Your npm Install Just Ran Someone Else's Code: Why Dependency Security Has to Start Before CI

A pull request checkout, a poisoned GitHub Actions cache, and an OIDC token pulled straight out of runner memory. That's how 84 malicious versions of TanStack's packages hit npm in six minutes.

Self Hosting

Self-Hosting Prometheus and Grafana: Infrastructure Monitoring That Actually Works

Build a production-grade monitoring stack with Prometheus and Grafana from scratch. Covers architecture, Docker Compose deployment, Node Exporter, alerting with Alertmanager, PromQL from basics to advanced, pre-built dashboards, and everything CoderOasis uses to monitor its own infrastructure.

Self Hosting

Zero Trust Everything: The Complete Guide to Self-Hosting Teleport for Secure Infrastructure Access

CoderOasis runs Teleport internally for everything — admin panel access, secure database connections, Kubernetes, and zero-trust philosophy across our entire team. This is the complete technical guide to installing, configuring, and running your own self-hosted Teleport cluster from scratch.

Self Hosting Featured

Build Your Own AI Agent Stack: The Complete Self-Hosted Guide for 2026

Build a production-grade self-hosted AI agent from scratch using Docker Compose. Covers the full stack — Ollama, n8n, Flowise, Qdrant, SearXNG, Langfuse, and Redis.

Web Development

Inside TypeScript 7: What a Year-Long Rewrite in Go Actually Bought Developers

A deep look at how Microsoft's Go-based TypeScript 7 compiler achieves its speed gains, and what the Visual Studio Code team's year-long migration reveals about adopting it safely.

Web Development

TypeScript 7.0 Is Officially Here: What Changed and How to Upgrade

TypeScript 7.0 has officially launched, bringing a native Go-based compiler with 8x to 12x faster build times. Here's what shipped, how to install it, and how to migrate safely.

Databases

MySQL, PostgreSQL, Redis, and MongoDB End-of-Life Dates in 2026

Four major open source databases are hitting end-of-life milestones in 2026, and MySQL 8.0 has already crossed that line. Here's a practical, code-first look at how to audit what you're running, back it up properly, and migrate before the risk compounds.

Cybersecurity

Microsoft's 2011 Secure Boot Certificates Are Expiring and Most Windows Users Don't Know It

Microsoft is displaying escalating Secure Boot warnings starting May 13 (Windows 10) and May 16 (Windows 11). The original 2011 certificates expire in October 2026. Unpatched systems may refuse to boot. Here's the full technical picture and what to do.

Cybersecurity

CVE-2026-41940: The cPanel Authentication Bypass That Runs 70 Million Domains and Is Being Weaponized Right Now

CVE-2026-41940 is a CVSS 9.8 authentication bypass in cPanel/WHM affecting every version after 11.40. It was a zero-day for two months, 44,000 IPs are now scanning, ransomware has deployed, and a state-linked actor is hitting Southeast Asian government networks. Patch now.

Self Hosting

Vaultwarden vs Bitwarden vs 1Password (2026 Comparison)

Vaultwarden replaces Bitwarden's paid tiers for free. Here's the real feature comparison and our self-hosted setup guide.

Cryptography

A Researcher Just Broke a 15-Bit Elliptic Curve Key on a Quantum Computer. Here's Why That Should Concern You.

On April 24, 2026, Project Eleven awarded 1 BTC to researcher Giancarlo Lelli for breaking a 15-bit elliptic curve key on publicly accessible quantum hardware. Here's what that means, why the trajectory matters more than today's number.

Open Source

Microsoft Bought GitHub for $7.5 Billion and Has Been Slowly Wrecking It Ever Since

Linus built Git in 10 days. GitHub became where open source lives. Then Microsoft paid $7.5B, killed Atom, trained Copilot on your code, corrupted main branches with a merge queue bug, and folded the whole thing into CoreAI. Here's the full story.

Software Development

Zed 1.0 Is Out — And the Guy Who Built Electron Just Proved It Was a Mistake

Zed 1.0 Released — The man who built Electron at GitHub created Zed to fix the damage. Here's the full technical story of why Electron is broken and what Rust + GPU rendering actually changes.

Cybersecurity

CVE-2026-31431 "Copy Fail": How a 9-Year-Old Linux Kernel Bug Gives Any Local User Root in 732 Bytes

CVE-2026-31431 chains AF_ALG, splice(), and authencesn's ESN scratch write into a deterministic 4-byte page cache write that gives an unprivileged local user root. Full technical breakdown, exploit mechanics, detection, mitigation, and patch status per distro.

Monthly Roundup

Monthly Roundup — April 2026

The six biggest articles from CoderOasis in April 2026 — local LLMs, self-hosted stacks, Claude Mythos breaking Firefox, the r/programming AI ban, Stable Diffusion, and the sandbox escape that changed everything.