Shadow – Editor-agnostic live collaboration (open source)
Editor-agnostic pairing that works where VS Code Live Share can't.

Server-enforced auth baked into the query layer solves AI hallucinated security holes nicely.
SaaS founders building multi-tenant collaborative applications
Supabase · Replicache · Convex
Editor-agnostic pairing that works where VS Code Live Share can't.
Server-sovereign BaaS with BYOB, but Firebase/Supabase already own this space.
Server-sovereign CRDT + authorization baked into data model, but no live demo or production evidence.
Firebase replacement with server-sovereign data model; auth-as-schema is ambitious but execution unclear.
Visual DAG for markdown skill dependencies with token limit analytics.
Medium blog post about an e-reader, blocked by Cloudflare security check.