Pre-modeled infrastructure bundles (comments, reactions, files, notifications, chat, search, moderation, follows, connections, collections, feeds, spaces, AI search) that developers install as SDKs instead of building from scratch
Key Features
Comments & Threads - hierarchical nested comments with moderation, mentions, reactions, Reactions & Votes - 8 reaction types with per-type counts and scoring, Spaces & Communities - nested workspaces up to 10 levels deep with roles and moderation, Notifications - 14+ event types with templatable messages, unread counts, pagination, Feeds & Discovery - rich filtering, sorting by hot/top/new, personalized feeds, Real-Time Chat - 1:1 and group conversations with typing indicators, read receipts, Following & Connections - one-way subscriptions or mutual connections with request/accept flows, AI-Powered Search - vector search across entities, comments, users, spaces with AI answer endpoint, TypeScript SDKs for React, React Native, Node.js, JavaScript, Editable UI components - React/React Native source code (not black box), Entity-based content model - any content type attaches to bundles automatically, Foreign ID mapping - links to existing data without migrations
Problem It Solves
Every user-powered product spends weeks building undifferentiated infrastructure (content modeling, threaded discussions, permission graphs, ranking pipelines, search indexing, notification fan-out, social graphs, moderation queues) before shipping their actual product
Target Customer
Developers building user-powered products - community platforms, marketplaces, creator platforms, SaaS tools with user content
Use Cases
Community Platforms - forums, Q&A sites, interest groups, Marketplaces & Reviews - product reviews, seller ratings, buyer feedback, Creator & Content Platforms - blogs, video platforms, newsletters
Pricing Details
Start for free tier available
Differentiator
Pre-modeled bundles that attach to entities automatically; editable source code components (not black box npm dependency); TypeScript-first open source SDKs; works with existing data via foreign ID without migrations
Why Now
Building user-powered products is increasingly common but infrastructure underneath is table stakes, not differentiator - developers need to clear weeks of undifferentiated work before building what actually matters
Traction
Notable Metrics: 300+ projects already building with Sublay · Awards: #2 Product of the Day on Product Hunt