Authentication, authorization, SSO, identity providers and access management.
Docmost is the genuinely open source Confluence and Notion alternative — real-time collaborative editing, spaces, permissions, built-in Drawio and Mermaid diagrams, and no OIDC provider required just to log in. Self-host free, no seat fees, your data on your server.
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.
Outline is the fastest, most polished team wiki available — self-hostable, real-time collaborative, and Notion-inspired. There's one catch: it's not actually open source. Here's what it is, how it works, and whether that matters for your team.
Authentication is one of those problems you really don't want to build yourself — but choosing the right solution is genuinely confusing. Here's a practical breakdown of Authentik and the main alternatives, and when to use which.