Guides

Self-Hosting Gitness (Harness Open Source): Modern Git Hosting with Built-In CI/CD Most self-hosted Git solutions make you bolt on CI/CD as an afterthought. You set up Gitea, then add Woodpecker or Drone, configure webhooks, manage two sets of credentials, and pray the integration doesn’t break during updates. Gitness — now officially Harness Open Source — takes a different approach. It’s a single binary that ships Git hosting, CI/CD pipelines, code review, secret scanning, and cloud developer environments in one package. Born as the next generation of Drone CI, it inherits Drone’s container-native pipeline philosophy while adding a complete source control layer on top. ...

Self-Hosting LanguageTool: Grammar Checker API with Docker Every writing tool wants to phone home. Grammarly reads everything you type. Google Docs analyzes your documents on their servers. Even browser extensions quietly ship your text to cloud APIs for grammar checking. If you write anything sensitive — legal documents, medical notes, proprietary code comments, personal journals — that’s a problem. LanguageTool is an open-source grammar, style, and spell checker that supports over 30 languages. It powers grammar checking in LibreOffice, and its commercial cloud service competes directly with Grammarly. But unlike Grammarly, you can run your own instance. Your text never leaves your network, you get unlimited checks with no word caps, and you can plug it into browser extensions, text editors, and custom applications via a clean REST API. ...

Self-Hosting Weblate: Continuous Localization Platform Localization is one of those things that’s easy to ignore until it blocks a release. You’ve got translators waiting on developers to export strings, developers waiting on translators to finish, and a spreadsheet somewhere that nobody trusts anymore. Meanwhile your French translation is three versions behind and the German one has 47 fuzzy entries nobody’s reviewed. Weblate is an open-source continuous localization platform that plugs directly into your Git workflow. Translators work in a web UI, changes get committed back to your repository automatically, and you can see translation status at a glance across every language. It’s used by over 2,500 projects including LibreOffice, phpMyAdmin, and Fedora — so it handles real scale. ...

Self-Hosting Budibase: Low-Code Platform for Internal Tools Every company has That Spreadsheet. The one that started as a quick tracker and evolved into a mission-critical monster with 47 tabs, three people who understand the formulas, and a prayer that nobody accidentally deletes row 4. Budibase turns those spreadsheets into actual applications — with forms, tables, automations, and role-based access — without requiring you to be a full-stack developer. It’s an open-source low-code platform that lets you build internal tools on top of your existing data sources (PostgreSQL, MySQL, REST APIs, Google Sheets, or its own built-in database). ...

Self-Hosting DocuSeal: Open Source Document Signing Platform If you’ve ever paid $25/month for DocuSign just to get a few contracts signed, you know the pain. DocuSeal is an open source alternative that handles document creation, filling, and signing — all self-hosted on your own server. No per-envelope fees, no subscription tiers, no sending your sensitive contracts through someone else’s infrastructure. It’s a Ruby on Rails app with a clean, mobile-optimized interface that works surprisingly well for something you can spin up in five minutes with Docker. ...

Self-Hosting Duplicati: Encrypted Cloud Backup with Docker You have a self-hosted stack running. Databases, configuration files, media libraries, personal documents — all living on your server. Now ask yourself: if that drive died right now, what would you lose? Duplicati is a free, open-source backup client that encrypts your data before sending it to cloud storage. It supports over 30 storage backends — S3, Backblaze B2, Google Drive, OneDrive, SFTP, WebDAV, and more — with AES-256 encryption, deduplication, and incremental backups. Everything runs through a clean web UI, so you schedule it once and forget about it. ...

Self-Hosting LibreChat: Multi-AI Chat Interface for OpenAI, Claude & Local Models Paying for ChatGPT Plus, Claude Pro, and Gemini Advanced separately gets expensive fast — and you’re still locked into each provider’s individual interface. LibreChat gives you a single, self-hosted ChatGPT-style UI that connects to all of them at once: OpenAI, Anthropic, Google, local models through Ollama, and dozens more through OpenRouter and custom endpoints. It’s not just a chat wrapper. LibreChat includes conversation branching, file uploads, image generation, a code interpreter, RAG (retrieval-augmented generation) with your own documents, MCP tool support, multi-user auth, and an agent system that lets you build custom AI assistants — all from one interface you fully control. ...

Self-Hosting Monica CRM: Personal Relationship Manager with Docker You’ve forgotten your partner’s coworker’s name for the third time. Your friend mentioned their kid’s allergy last month and you can’t remember which one. Your uncle told you about his surgery and you didn’t follow up. Sound familiar? Monica is an open-source personal CRM (Customer Relationship Management — except the “customers” are the people you actually care about). It gives you a structured place to record details about people in your life: what you talked about, their birthdays, their kids’ names, food preferences, important life events, and the things that make relationships feel intentional rather than accidental. ...

Self-Hosting Woodpecker CI: Lightweight Continuous Integration Most self-hosted CI/CD tools are either overkill for a homelab or painful to configure. Jenkins needs a PhD in XML. GitLab CI requires GitLab. GitHub Actions is locked to GitHub’s cloud (or a heavyweight self-hosted runner setup). Woodpecker CI takes a different approach: a lightweight, container-native CI/CD engine that uses ~100 MB of RAM for the server and ~30 MB per agent. It’s a community fork of Drone CI (before the license change), fully open source under Apache 2.0, and used in production by Codeberg — one of the largest community Git hosting platforms. ...

Self-Hosting Coolify: Your Own Heroku-Like PaaS Remember when Heroku had a free tier and deploying apps was just git push heroku main? Coolify brings that experience back — on your own hardware. It’s an open-source, self-hosted Platform-as-a-Service that handles deployments, SSL certificates, databases, and more through a clean web interface. No more manually writing Docker Compose files for every project. No more SSH-ing into servers to debug deployments. Coolify gives you a Vercel/Heroku-like experience while keeping everything under your control. ...