HHugoinhugovalters.hashnode.dev·31m ago · 3 min readTLS Certificate Automation: Certbot and ACME at Scale03:14. payments-api starts returning 502s. Four hundred and forty-seven seconds later someone notices the dashboard is red. Forty-seven minutes later, someone finds the postmortem bullet nobody wants 00
HHugoinhugovalters.hashnode.dev·33m ago · 4 min readDocker on ZimaBoard: Memory Constraints & WorkaroundsThe ZimaBoard is genuinely good hardware. It's also a 6-watt passively cooled x86 box with soldered RAM and an eMMC that will die before your warranty does. Docker will run on it fine. Docker will als00
HHugoinhugovalters.hashnode.dev·35m ago · 3 min readProxmox Resource Pools: Multi-Tenant Isolation GuideA managed service provider migrated 40 customers onto a single six-node Proxmox VE cluster. Every VM lived in the default "no pool" state. Every tenant admin had been handed PVEVMAdmin on /vms during 00
HHugoinhugovalters.hashnode.dev·38m ago · 3 min readAppArmor and seccomp Profiles: Restricting Container System CallsA Senior DevSecOps Guide to Kernel-Level Container Hardening Target Audience: Platform engineers, security engineers, Kubernetes operatorsTone: Direct, opinionated, battle-hardenedPrerequisites: Basic00
HHugoinhugovalters.hashnode.dev·48m ago · 3 min readSSH Tunneling: The Swiss Army Knife of Networking You're Not UsingI recently watched a DevOps team spend three days arguing over the routing tables of a new WireGuard Site-to-Site tunnel. They just wanted to give a single developer access to a staging Prometheus das00
VLVin Lawzinvinlawz.hashnode.dev·1h ago · 5 min read10 Developer YouTube Channels You Should VisitLearning never really stops, especially in software development. There is always another concept to understand, another framework to try, and another problem to solve. The challenge is not always find00
PApenuel akominpenuel-dem.hashnode.dev·4h ago · 6 min readHow to Set Up BYOK with Azure OpenAI in VS Code (And Why It Keeps Failing)I spent an entire day going back and forth trying to get my Azure-deployed models working in VS Code Copilot Chat. No clear error, no real documentation that connected the dots — just the same "Access00
TDTiger Dataintigerdata.hashnode.dev·22h ago · 5 min readWhy a 40-Year-Old Database Is Still Winning in the AI EraOriginally published on September 1, 2026. Written by Ajay Kulkarni. There are still some fundamental truths that won't change. LLMs are making it dramatically easier to build software, so yes, we're 00
MMemorySyncinmemorysync.hashnode.dev·1d ago · 6 min readZero-Signup Docs MCP: How to Query Technical Documentation Directly Inside CursorIf you use Cursor, Windsurf, or Claude Code to build software, you have inevitably encountered the "Hallucinated API" problem: You ask the model to implement a feature using a modern framework (like 22M
UBUJJWAL BALAJIinchatteronai.hashnode.dev·2d ago · 15 min readThe AI That Refuses to Talk: Where Are We Actually Heading?A new model that can't write a single sentence might be the most interesting release of the year. Ask an LLM: "Is this email spam?" "Great question! Let's explore the history of spam..." Ask Jev: "Ye01M
