Windmill turns scripts into APIs, webhooks, scheduled jobs, and auto-generated UIs — without the infrastructure overhead. AGPLv3 open source, 13x faster than Airflow, self-hostable on Docker or Kubernetes. The developer platform that replaces a shelf of internal tools.
OpenRAG is the single-command RAG platform from IBM and Langflow — Docling for document parsing, OpenSearch for semantic search, Langflow for visual workflow orchestration, and a built-in MCP server so your AI tools can query your knowledge base directly. Zero RAG plumbing required.
Gitea is the lightweight self-hosted GitHub alternative — single Go binary, 55k+ stars, GitHub Actions compatibility, runs on a Raspberry Pi. There's also Forgejo, its community fork that many now recommend instead. Here's what both are and when to pick which.
Fleet is the open source MDM that manages macOS, Windows, Linux, iOS, and Android from one platform — with GitOps workflows, osquery-powered visibility, and no vendor lock-in. Here's what makes it different from Jamf and Intune.
Flagsmith is the open source feature flag and remote config platform that decouples deployment from release. Self-host for free with no user limits, or use the managed cloud. BSD-3-Clause licensed, 15+ SDKs, and a built-in MCP Server for AI agent workflows.
Supabase is the open source Firebase alternative built on PostgreSQL — auth, real-time database, storage, edge functions, and auto-generated APIs in one platform. Self-hostable, Apache 2.0, and genuinely production-ready in 2026.
Dify is the visual LLM app platform with 138k+ stars that lets you build RAG pipelines, AI agents, and multi-model workflows in an afternoon. Self-hostable, model-agnostic, and production-ready. One honest caveat about the license.
Nomad is the orchestrator I reach for when Kubernetes is too much machine for the job. Here's what it is, how the Nomad Autoscaler handles both apps and cluster nodes, and where it fits.
Dokploy is the open source PaaS that gives you Heroku-style deployments on your own VPS — Git push to deploy, automatic SSL, databases, and Docker Compose support, all on infrastructure you own. Here's how it works and how it compares to Coolify and CapRover.
