Open WebUI Deep Dive: Users, Models, Documents, Prompts, and Safe Sharing
A noob-friendly tour of Open WebUI after installation: user accounts, model switching, documents, prompt shortcuts, admin settings, OpenAI-compatible endpoints, backups, updates, reverse proxy basics, and LAN/VPN security.
OpenWrt 24.10.8 and 25.12 Migration Runbook: Patch, Backup, Sysupgrade, and Recovery
An OpenWrt router upgrade runbook for patching exposed services, preserving config, checking device support, testing DHCP, Wi-Fi, DNS, and keeping recovery ready.
Keycloak 26.7.1 Security Response: Map the Fixes to the Features You Actually Use
Keycloak 26.7.1 includes many security fixes. This guide maps them to OIDC, SAML, FGAP, DCR, LDAP, metrics, and upgrade validation.
Local AI Hardware Sizing: CPU, NPU, GPU, RAM, and VRAM
A local AI hardware sizing guide explaining model memory, quantization, KV cache, CPU-only use, NPUs, GPUs, RAM, VRAM, and upgrade tiers.
Building the Right PC for Local AI
A plain-English guide to choosing the right CPU, RAM, GPU, VRAM, storage, power supply, and cooling for a local AI homelab PC.
Bazarr 1.6.1 Security Response: Patch or Isolate, Rotate Keys, and Check for RCE
A practical Bazarr response plan for the 1.6.1 authentication bypass chain: isolate exposure, patch, rotate secrets, review logs, and decide when to rebuild.
Portainer 2.44 Security and Bootstrap Tokens: Secure First Run and Existing Installs
A Portainer security runbook for first-run exposure, setup tokens, agent trust, endpoint permissions, backups, and management-plane isolation.
Home AI Hardware Levels: A Beginner's Guide to the PC You Need
A plain-English guide to choosing hardware for a home AI setup, from using an old PC to building a serious GPU workstation.
Local AI Models Explained: Gemma, Llama, Qwen, Nemotron, Phi, DeepSeek, and More
A noob-friendly guide to local AI model families, model size, VRAM, quantization, RAG, coding models, vision models, and how to choose what to run at home.
October 2026 DNSSEC Root Key Rollover: Test Your Resolver Now
A documentation-backed, testable runbook for October 2026 DNSSEC Root Key Rollover: Test Your Resolver Now, with safe defaults, validation evidence, failure modes, rollback, and publication-day checks.