Kindred

A 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.

Role: Creator
Years: 2025-2026
Status: Live
Stack: Next.js 16
React 19
TypeScript
PostgreSQL
Yjs
CRDTs
AI

Visit quantum-forge-self.vercel.app

quantum-forge-self.vercel.app2025-2026

Numbers

Stack: Next.js 16 + Postgres

The brief

Obsidian works offline and Notion does real-time collaboration. I wanted both in one tool.

The build

Yjs CRDTs for conflict-free sync that also works offline, a BlockNote and Tiptap block editor, Supertags for organizing pages, and built-in AI.

What shipped

Live at quantum-forge-self.vercel.app.

Shares the most stack with this project

CarefulshipPreview-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.Next.js 16, React 19
AquaLogA free PWA for home aquarium hobbyists: multi-tank logs, water parameter charts, maintenance schedules, species compatibility checks, and AI predictions that warn before a parameter reaches a dangerous level. A paid plan lifts the one-tank limit.TypeScript, AI
TestimoniqA SaaS for collecting customer testimonials as text, video or images and showing them on your site with 11 widget layouts. AI scores sentiment and quality, and there are NPS surveys and SMS requests. Stripe billing has Free, Pro and Agency plans.TypeScript, AI

Hiring for something like this?

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

Start a conversation hello@elizabethannstein.com

Numbers

The brief

The build

What shipped

Related work

Hiring for something like this?