Carefulship

Preview-first website audits. Add a site you track, and it crawls it, lists findings and exports reports. Background crawls run on Inngest, with Supabase for data, Playwright for dynamic checks and Langfuse for tracing the AI parts. Slack, email and Vercel integrations are optional.

Role: Creator
Years: 2026
Status: In progress
Stack: Next.js 16
React 19
Supabase
Inngest
Playwright
Sentry
Langfuse

In progress

category: Full-stack
stack: Next.js 16, React 19, Supabase, Inngest

No screenshot published2026

The brief

One-off audit scripts do not watch a site over time.

The build

Scheduled crawls, findings with severity scores, and exportable reports, with row-level security on the Supabase tables.

What shipped

In progress.

Shares the most stack with this project

UCP GuardMonitoring for Universal Commerce Protocol endpoints. It checks a store's /.well-known/ucp endpoint against the spec and sends alerts when something breaks. Next.js 16, Supabase, Stripe and Resend.Next.js 16, Supabase
KindredA knowledge workspace with AI built in. Pages are blocks (BlockNote and Tiptap), Yjs CRDTs sync edits between people and work offline, and Supertags add properties to pages.Next.js 16, React 19
Security Readiness PlatformA security-readiness assessment in production for a cybersecurity nonprofit (client confidential). It runs on Dynamics 365, Power Platform and Dataverse, with a Next.js front end. I built it in 12 implementation phases and I am the sole developer.Next.js 16, React 19

Hiring for something like this?

Contract, advisory, or full-time. Tell me what you are building.

Start a conversation hello@elizabethannstein.com

The brief

The build

What shipped

Related work

Hiring for something like this?