open source

Immich is a self-hosted Google Photos alternative with automatic mobile backup and AI-powered search. This guide covers installing it with Docker Compose: downloading the official compose files, configuring…

Coolify is an open-source, self-hostable PaaS — a direct alternative to Heroku, Netlify, and Vercel — that deploys applications straight from a Git repository into Docker containers, with…

GitLab and GitHub are the two best-known Git platforms, and both offer modern repositories, pull/merge requests, and CI/CD. The decisive difference is ownership: GitLab offers a free, open-source…

Gitea and Gogs are the two minimalist, Go-based self-hosted Git servers — both ship as a single binary, both run on tiny hardware, and they share a common…

Gitea and GitLab solve the same starting problem — hosting your own Git repositories — but they answer it at opposite scales. Gitea is a lightweight code-hosting service…

Gitea and Forgejo are two lightweight, self-hosted Git platforms that look almost identical — because one began as a fork of the other. Forgejo split from Gitea in…

Tracearr is a free, open-source, self-hosted monitoring platform for Plex, Jellyfin, and Emby. It pulls every stream across your media servers into one dashboard, shows you who is…

cal.diy suits users who want a simple booking link with minimal setup. Cal.com is the better choice for teams that may need more event types, branding options, paid…

Cal.com and Calendly both offer strong scheduling features, but they differ sharply in pricing, data ownership, and deployment. This comparison explains where Cal.com stands out as an open-source,…

Cal.com and SavvyCal take very different approaches to scheduling. This comparison explains where Cal.com stands out for self-hosting, APIs, and data ownership, and where SavvyCal leads with its…

OpenClaw is an open-source, self-hosted AI agent that connects to messaging apps, takes real actions, and keeps your workflows and data under your control.

Complete Apache Tomcat guide: what it is, how to install it on Linux, Windows & Docker, deploy Java/WAR apps, secure it, and troubleshoot in 2026.

In our start lineup we are presenting all most common played games on game servers like the Counter-Strike universe and several Minecraft server types. Our game servers are…

Today we don't celebrate Valentine's day – we rather celebrate the "I love Free Software Day" at the Contabo office. On this special day we do not buy…