BSL-1.1

3 self-hostable open-source tools licensed under BSL-1.1 · across 3 categories

Source-available, not OSI-approved open source. Self-hosting is permitted below revenue / use thresholds the vendor sets, and the license auto-converts to a permissive license (typically Apache-2.0 or MPL-2.0) after a 2-4 year window. See /blog/self-host-license-drama-2026-05/ for the trade-offs.

One-line plain-English summary above — not legal advice. Confirm with the project's LICENSE file before commercial use.

Headless CMS

Directus alive ★ 35.7k replaces Contentful

15min docker-compose (Node + Postgres or MySQL) · $10/mo VPS.

Message queue / async messaging

Redpanda alive ★ 12.1k replaces Amazon SQS

20min docker-compose (Redpanda + Console UI) · $15-40/mo VPS — single-binary Kafka-compatible broker, no JVM.

Team wiki / documentation

Outline alive ★ 38.5k replaces Confluence +2

15min docker-compose · $5 VPS — Postgres + Redis + S3-compatible store.