ITNotes - Page 78 of 119 - From Terminal to Cloud

Ditch Discord: Self-Hosting Matrix Synapse and Element with Docker

April 25, 2026

Take back your digital sovereignty. This guide shows you how to deploy a private, end-to-end encrypted Matrix chat server using Docker, PostgreSQL, and Element for a professional-grade HomeLab setup.

HomeLab

Deploy FreshRSS on Docker: Self-Host Your Own RSS Reader and Take Back Control of Your News Feed

April 24, 2026

Deploy FreshRSS on Docker to self-host your own RSS reader — no cloud dependency, no algorithm, just the feeds you chose. This guide walks through quick setup, PostgreSQL config, reverse proxy, mobile sync via the Google Reader API, and practical tips from daily use.

Database

PostgreSQL Point-in-Time Recovery (PITR): Restore Your Database to Any Exact Second

April 24, 2026

PostgreSQL Point-in-Time Recovery (PITR) lets you restore your database to any exact second — not just to the last backup. This guide walks through WAL archiving setup, base backup configuration, and step-by-step recovery from real incidents like accidental deletes or corruption.

Build a Local Voice Assistant with Whisper and Ollama: Fully Offline Speech Recognition and LLM Response

April 24, 2026

A practical guide to building a fully offline voice assistant using Whisper for speech recognition and Ollama for local LLM responses — no cloud APIs, no latency overhead, complete privacy. Based on six months of production experience with measurable performance data.

DevOps

Building an Internal Developer Portal with Backstage: Centralize Docs, Tools, and DevOps Workflows

April 24, 2026

Backstage is an open-source Internal Developer Portal that centralizes your team's service catalog, documentation, and DevOps workflows in one place. This step-by-step guide walks you through installing Backstage locally, registering services in the catalog, enabling TechDocs, and setting up basic health monitoring so your portal stays reliable.

Scaling Your Workflow: Using Sub-agents in Claude Code for Heavy-Duty Dev Tasks

April 24, 2026

Is your AI getting confused by large projects? Learn how to use Claude Code's sub-agents to delegate tasks, prevent context saturation, and speed up your development workflow.

DevOps

Linkerd on Kubernetes: Zero-Config mTLS and Observability That Actually Works

April 24, 2026

Simplify your Kubernetes networking. This guide shows you how to deploy Linkerd for automated mTLS, sub-millisecond latency, and instant observability without the complexity of Istio.

Programming

Hono.js on Cloudflare Workers: A 6-Month Production Post-Mortem

April 24, 2026

Is Hono.js actually ready for production? After 6 months of running APIs on Cloudflare Workers, I share the performance data, cost savings, and the technical hurdles you'll face.

Security

Hardening the Kernel: How I Use Seccomp and Linux Capabilities to Stop Escalation

April 24, 2026

Stop privilege escalation before it starts. A senior engineer explains how to use Seccomp and Linux Capabilities to shrink your kernel attack surface based on real-world incident response.

HomeLab

Self-Hosting n8n on Docker: The Ultimate Workflow Engine for Your HomeLab

April 24, 2026

Ditch expensive SaaS limits. This guide shows you how to self-host n8n on Docker with PostgreSQL for a professional-grade HomeLab automation hub.

Speed Up Python with Numba JIT: Make Heavy Data Processing 100x Faster

CDK for Terraform (CDKTF) with Python: Deploy Cloud Resources Without Writing HCL

Clean Up Your Java Code: A Practical Guide to Vavr

Stop Deploying Broken Docker Images: A Guide to Container Structure Tests

Mastering Golang Memory Profiling: A Practical Guide with pprof

Stop Storing Secrets in Git: A Guide to 1Password Connect on Kubernetes

Building a Network Performance Testbed: High-Speed Testing with TRex on Linux

Stop Writing Boilerplate: A Guide to Python Dataclasses, Attrs, and Pydantic

Build Your Own Private 5G Network: A Hands-On Guide with Open5GS and srsRAN

Mastering Socket.IO in Node.js: Building Secure, Production-Ready Real-Time Apps

Ditch Discord: Self-Hosting Matrix Synapse and Element with Docker

Deploy FreshRSS on Docker: Self-Host Your Own RSS Reader and Take Back Control of Your News Feed

PostgreSQL Point-in-Time Recovery (PITR): Restore Your Database to Any Exact Second

Build a Local Voice Assistant with Whisper and Ollama: Fully Offline Speech Recognition and LLM Response

Building an Internal Developer Portal with Backstage: Centralize Docs, Tools, and DevOps Workflows

Scaling Your Workflow: Using Sub-agents in Claude Code for Heavy-Duty Dev Tasks

Linkerd on Kubernetes: Zero-Config mTLS and Observability That Actually Works

Hono.js on Cloudflare Workers: A 6-Month Production Post-Mortem

Hardening the Kernel: How I Use Seccomp and Linux Capabilities to Stop Escalation

Self-Hosting n8n on Docker: The Ultimate Workflow Engine for Your HomeLab