std-toolkit
Database-agnostic sync engine. Started as DynamoDB sync, then DynamoDB became just an adapter on top of TanStack DB and Effect.
Offline-first sync with IndexedDB cache, partitioned subsets, and one tab doing the network work while the rest listen. Adapters for in-memory, IndexedDB, DynamoDB, and SQLite. The bank demo at demo-docs.kishore.app is the thing to poke, because transfers either fully happen or they don't.
Related builds
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Bureaucracy for coding agents. They file requirements, get designs confirmed, claim tasks, and leave a paper trail on every merge.
ncda
Like ncdu, but for disk I/O on Linux, via eBPF.
Sentio
Rust SMTP server with an API, built because they wanted agent inboxes. Linux, Windows, Docker. Now open source.