How a Finnish student's 1991 hobby kernel, posted to a Usenet group with the caveat that it "won't be big and professional like gnu," collided with a free GNU userland, a frozen BSD lawsuit, and the GPL — and became the operating system of the cloud, the supercomputer, and three billion phones.
Open-Source
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The Story of Linux -
Open-Source Licensing, Actually Explained What you can ship and what you must share: permissive versus copyleft mechanics, the linking question, why SaaS broke the GPL and created the AGPL, the relicensing wars of Elastic, Redis, MongoDB, and HashiCorp and the forks that answered them, source-available versus open source, CLAs versus DCOs, and a practical compliance checklist.
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Software Patents for Working Engineers What is actually patentable after Alice v. CLS Bank, how to read a patent claim like a boolean expression, the economics of patent trolls, defensive strategies from prior art to the LOT Network, what your invention assignment agreement really says, and what to do when a demand letter arrives.
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Building a Local RAG Pipeline: From Documents to Answers A practical guide to building a fully local Retrieval-Augmented Generation pipeline: document ingestion, chunking strategies, embedding model selection, vector store options (ChromaDB, Qdrant, FAISS), reranking, and wiring it all together with LangChain and Ollama — no cloud APIs required.
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OpenTelemetry in Practice: Tracing, Metrics, and Logs Without Vendor Lock-In A practical guide to OpenTelemetry: instrumenting real services with the SDK, running the Collector as a telemetry pipeline, exporting traces to Grafana Tempo, metrics to Prometheus, logs to Loki, and understanding context propagation and baggage.
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Proxmox VE: The Comprehensive Guide A complete guide to Proxmox Virtual Environment: installation and post-setup hardening, KVM virtual machines with cloud-init, LXC containers, ZFS and Ceph storage, bridged and VLAN networking, clustering with Corosync, high availability, GPU passthrough, Proxmox Backup Server, and automation via the REST API and Terraform.
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Terraform at Scale: Modules, Remote State, and the Drift Problem A practical guide to running Terraform in production: S3 remote state with native locking, workspace vs directory-based environment separation, module versioning strategies, Terragrunt for DRY configuration, drift detection in CI, moved blocks for safe refactoring, and state surgery when things go sideways.
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ZFS for the Homelab: Storage That Doesn't Lie A practical guide to ZFS on Linux: pool layout decisions (RAIDZ vs mirrors), dataset properties, snapshot strategies, send/receive replication for offsite backup, scrub scheduling, and ARC tuning for systems where RAM is not unlimited.
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The Local Coding Agent Stack: Aider, Continue, Cline, and OpenHands Pure-local and BYOK coding assistants compared head-to-head: architecture, model support, what works at the 32B–70B tier, and where each tool breaks down in practice.
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LiteLLM and Model Routing: The Proxy Pattern for Multi-Provider LLM Apps One OpenAI-compatible endpoint, many backends. How LiteLLM's proxy pattern works, how to configure routing, fallbacks, cost controls, and observability, and when a self-hosted gateway beats managed alternatives.
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Nix and NixOS: Reproducible Infrastructure from the Ground Up Declarative system configuration, the Nix store, flakes, home-manager, and why 'it works on my machine' becomes irrelevant — along with an honest account of where Nix makes your life harder before it makes it better.
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Temporal and Workflow Orchestration: Durable Execution for Engineers Who've Been Burned What makes Temporal different from a job queue, how event history replay achieves durable execution, activities vs workflows with real code, retries that actually work, self-hosting on Kubernetes, and an honest comparison with Celery, Airflow, and Step Functions.
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vLLM vs SGLang vs TensorRT-LLM: Inference Engine Shootout 2026 A thorough comparison of the three dominant LLM inference engines: how each one works internally, where each wins on benchmarks, and which to reach for given your hardware, workload, and operational tolerance.
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Writing a Kubernetes Operator: The Complete Pattern Custom Resource Definitions, controllers, reconciliation loops, finalizers, status conditions, and building a real operator with controller-runtime that manages a stateful workload — with every pattern you need to do it right.
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Verilator Deep Dive: Open-Source Simulation That Can Actually Replace Your Commercial Tool Modern Verilator as a genuine alternative to commercial RTL simulators — compiling SystemVerilog to cycle-accurate C++ that runs 10-100x faster — covering what it now handles well, its limits, and how to wire up testbenches.
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Perses: The Open Dashboarding Standard Perses is a CNCF sandbox project that treats dashboards as code — versioned in Git, validated in CI, deployed as Kubernetes CRDs. Here's what it is, how it works, and when to use it.
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Score: Developer-Centric Workload Specification Score lets developers write a single score.yaml that deploys to Docker Compose locally and Kubernetes in production — without rewriting config for each environment.
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Miniflux: Minimal Self-Hosted RSS Miniflux is a single-binary, PostgreSQL-backed RSS reader that trades feature bloat for speed and simplicity. Here's how to deploy it, configure it, and get the most out of it.
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Stirling PDF: Self-Hosted PDF Swiss Army Knife Run 50+ PDF operations locally with Stirling-PDF — merge, split, OCR, convert, compress, sign, and redact without sending a single byte to the cloud.
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Wallos: Take Control of Your Subscription Sprawl Wallos is a self-hosted subscription tracker that shows you exactly what you're paying for, when it's due, and how much it costs — without sending your financial data anywhere.
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Writing Good READMEs: Documentation That Developers Actually Read A practical guide to writing READMEs that developers actually read — covering structure, examples, anti-patterns, and templates for open-source and internal projects alike.
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What is Linux? A Beginner's Introduction Understanding Linux, its history, and why it matters for developers and system administrators.