Self-Hosting

How to run your own servers, Docker stacks, and self-hosted services without losing weekends to config files.

COSMIC Desktop 1.0: One Month of Daily Driving System76's Rust DE

Thirty days of COSMIC Desktop 1.0 on Pop!_OS 24.04 LTS, and I am keeping it. Switch if you are a keyboard-first developer who wants a real tiling-plus-floating hybrid, appreciates Rust-grade stability, and likes a UI that sits under 900 MB at idle. Wait a release or two if you depend on a big GNOME extension collection, niche input methods (CJK/IBus edge cases), or a heavy accessibility stack. The COSMIC Store’s catalog is still smaller than Flathub’s GNOME Circle or the KDE offerings, and only a handful of third-party cosmic-ext-* applets exist in 2026. Everyone else should at least boot the live ISO before deciding. COSMIC 1.0 is the first new Linux desktop in a decade that does not feel like a fork of something older.

$A desktop compute box on a workbench linked to a home outweighs a stack of monthly cloud-bill coins on a balance scale$

n8n and Ollama Local AI: $0/Month, Honest Hardware Math

Running private n8n and Ollama AI automations at home costs $0/month in software, but the hardware bill is real. The honest anchor: a used 64GB Mac Studio near EUR1,995 can replace a $90 to $125 monthly cloud bill, yet local tool-calling stays broken until you raise Ollama’s default num_ctx from 2048 to 8192.

Key Takeaways

“$0/month” covers software only. The hardware and electricity are still real costs.
Dockerized n8n reaches Ollama at host.docker.internal:11434, never localhost.
Ollama’s 2048 context default cuts off tool results. Raise it to 8192.
qwen2.5:14b is the most reliable local model for the AI Agent node.
Once set up, a local n8n stack runs for months without babysitting.

What is the n8n and Ollama local AI stack?

Ollama is the local engine that runs language models on your own machine. It serves them over port 11434, so anything on your network can send prompts to it. The same engine powers other local builds, like an Ollama-driven terminal assistant wired into shell scripts. n8n is the workflow orchestrator. It has over 400 integrations and dedicated AI nodes, so you can chain a model into real automations.

Three Docker management tools shown as a multi-server console, an industrial control panel, and a small single-host unit on a workbench

Komodo vs Portainer vs Dockge: A 2026 Homelab Decision Guide

Pick Komodo for Git-driven deploys across many Docker servers from one screen. Choose Portainer if you run Kubernetes, which Komodo does not support. Pick Dockge for a single lightweight host. Komodo added a dedicated Docker Swarm resource in 2026, closing what used to be the single most-cited reason people held off, a complaint that once drew 168 votes on Reddit.

Key Takeaways

Komodo wins on Git-driven deploys across many servers from one screen.
Portainer stays ahead for Kubernetes and mature production tooling.
Dockge is the lightest pick if you run a single host.
Komodo now manages Docker Swarm; Kubernetes is the remaining orchestration gap.
Komodo’s default VPS setup is insecure until you lock the agent port.

What is Komodo and what problem does it solve?

Komodo is an open-source tool that builds and deploys Docker software across many servers from one place. It is licensed under GPL-3.0 and written in Rust and TypeScript. The project lives at moghtech/komodo and was renamed from “Monitor” before the rebrand.

Three differently sized water reservoirs piping into a single server rack, illustrating SQLite, MariaDB, and PostgreSQL scaling ceilings.

Self-Hosted Databases in 2026: Postgres vs SQLite vs MariaDB

Picking a self-hosted database in 2026 comes down to one question: when does it force you to migrate? SQLite holds until about one write-heavy app server (~10 GB, single writer). PostgreSQL 18 is the default that almost never makes you move. MariaDB 12.3 LTS earns its spot mainly when you already live in the MySQL world.

Key Takeaways

SQLite serializes writes, so one busy app server is its real ceiling.
Postgres 18 is the default that almost never makes you migrate later.
MariaDB fits best when you already run MySQL tooling.
SQLite runs with no daemon and almost no RAM, while Postgres needs tuning.
The SQLite to Postgres jump is a planned move, not an emergency.

What are the best self-hosted databases for web apps in 2026?

For a self-hosted web app, three engines cover almost every case: PostgreSQL is the do-everything default, SQLite is the embedded single-file engine, and MariaDB is the MySQL-compatible community fork. All three are open source and free to run on your own box.

Raspberry Pi 5 vs Orange Pi 5 Plus: Which ARM SBC Is Better for Self-Hosting

The Orange Pi 5 Plus is the better self-hosting board for Docker-heavy workloads thanks to its 8-core RK3588 CPU, up to 32GB RAM, and dual NVMe M.2 slots. The Raspberry Pi 5 wins for beginners and single-service setups with its superior software ecosystem and community support. Both boards draw under 18W, run Docker containers on ARM64 without issues, and can be purchased for under $200 in their mid-range configurations. The right pick depends on how many services you plan to run and whether hardware expandability or software polish matters more to you.

eBPF Tracing for Linux 5.15: Real-Time Kernel Monitoring

eBPF (extended Berkeley Packet Filter) lets you attach tiny sandboxed programs to kernel events: syscalls, network packets, scheduler decisions, and filesystem calls. You collect detailed performance data in real time. No kernel source changes, no custom modules, no service restarts. With bpftrace one-liners and the BCC toolkit, you can measure per-process disk latency, trace TCP connections, profile CPU hotspots, and find memory leaks on production Linux. Overhead is usually under 2%.