CacheLens is a local HTTP proxy for monitoring and optimizing LLM API costs across Anthropic, OpenAI, and Google, offering real-time tracking, budget enforcement, cache analysis, and multi-provider visibility without sending prompts to external servers.
YAOS is a local-first, real-time sync engine for Obsidian that uses Yjs CRDTs and Cloudflare Durable Objects to provide 1-click deployment with zero-cost hosting. The backend uses a chunked checkpoint + delta-journal MVCC storage engine to handle real-time text synchronization and offline scenarios.
Spacedrive v3 is a local-first data engine that indexes multiple data sources (email, notes, Slack, etc.) and makes them searchable from one interface, with a novel multi-stage processing pipeline including prompt injection screening via Prompt Guard 2, content classification, and trust tier controls before indexing content for AI agent access.