Open-source, self-hosted AI app builder — an agent builds real apps in isolated sandboxes on your own server, each live at a preview URL. Self-host in one command. MIT.
-
Updated
Sep 2, 2026 - Go
Open-source, self-hosted AI app builder — an agent builds real apps in isolated sandboxes on your own server, each live at a preview URL. Self-host in one command. MIT.
A disposable copy of your production stack for every pull request: masked Postgres, contained third-party APIs, and agents that use your app like people.
Isolated databases for every AI agent branch. Build, test, and migrate in parallel. Production stays untouched.
Open-source CLI and agent skills for Prevu — preview/staging environments for coding agents like Claude Code, Codex, Cursor, OpenHands, even OpenClaw and Hermes Agent
The self-hosted Neon alternative — database branching for Postgres on infrastructure you own (AWS, GCP, Azure, or local Docker). Built on DBLab Engine.
Open-source full-stack preview environments with databases for every PR. The self-hosted alternative to Vercel/Qovery.
Self-hosted preview deployment control plane for isolated, secure application environments.
A Go utility for automatically posting and updating deployment preview comments on GitHub pull requests.
Kubernetes-native health checker that automatically finds and verifies your latest pods are ready before considering deployments successful - perfect for preview environments
Kubernetes-native issue workspace for coding agents, with local sessions, review evidence, and issue-scoped test environments.
Kubernetes-native lifecycle management for ephemeral development environments.
Deploy static site previews via ssh.
Per-pull-request ephemeral test environments on Kubernetes: isolated namespace, API suite sharded across parallel Indexed Jobs, aggregated Allure report, and a teardown the pipeline proves.
Deterministic security smoke tests for preview, staging, and pre-deploy web URLs.
Open-source control plane for ephemeral preview environments
Every open pull request gets its own live Kubernetes environment. Reconciled continuously against GitHub — no webhooks, no cleanup code.
Temporary links and preview environments for any server stack, built for users and automation agents.
Build, push, and deploy your app to FluxNow — or promote staging to production
Vercel-style PR previews on your own infrastructure — zero vendor lock-in
One preview environment per branch: builds the Dockerfile, picks a free port, and serves them all at name.localhost.
To associate your repository with the preview-environments topic, visit your repo's landing page and select "manage topics."