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Obsidian Sync now has a headless client 62 by adilmoujahid | 17 comments on Hacker News. February 28, 2026 at 11:31PM adilmoujahid 62 https://ift.tt/tTxUCiE Obsidian Sync now has a headless client 17 https://ift.tt/6Qu9BbT

Show HN: SQLite for Rivet Actors – one database per agent, tenant, or document 2 by NathanFlurry | 0 comments on Hacker News. Hey HN! We posted Rivet Actors here previously [1] as an open-source alternative to Cloudflare Durable Objects. Today we've released SQLite storage for actors (Apache 2.0). Every actor gets its own SQLite database. This means you can have millions of independent databases: one for each agent, tenant, user, or document. Useful for: - AI agents: per-agent DB for message history, state, embeddings - Multi-tenant SaaS: real per-tenant isolation, no RLS hacks - Collaborative documents: each document gets its own database with built-in multiplayer - Per-user databases: isolated, scales horizontally, runs at the edge The idea of splitting data per entity isn't new: Cassandra and DynamoDB use partition keys to scale horizontally, but you're stuck with rigid schemas ("single-table design" [3]), limited queries, and painful migrations. SQLite per ...

Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code 50 by mksglu | 13 comments on Hacker News. February 28, 2026 at 05:01PM mksglu 50 https://ift.tt/qQKHSTf Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code 13 https://ift.tt/OcrwWS4

Open source calculator firmware DB48X forbids CA/CO use due to age verification 12 by iamnothere | 2 comments on Hacker News. February 27, 2026 at 10:37PM iamnothere 12 https://ift.tt/inQBbaC Open source calculator firmware DB48X forbids CA/CO use due to age verification 2 https://ift.tt/9UG5T1m

Show HN: Unfudged – version control without commits 8 by cyrusradfar | 3 comments on Hacker News. I built unf after I pasted a prompt into the wrong agent terminal and it overwrote hours of hand-edits across a handful of files. Git couldn't help because I hadn't finished/committed my in progress work. I wanted something that recorded every save automatically so I could rewind to any point in time. I wanted to make it difficult for an agent to permanently screw anything up, even with an errant rm -rf unf is a background daemon that watches directories you choose (via CLI) and snapshots every text file on save. It stores file contents in an object store, tracks metadata in SQLite, and gives you a CLI to query and restore any version. The install includes a UI, as well to explore the history through time. The tool skips binaries and respects `.gitignore` if one exists. The interface borrows from git so it should feel familiar: unf log , unf diff , unf restore . I say "UN-E...

Vibe coded Lovable-hosted app littered with basic flaws exposed 18K users 10 by nottorp | 0 comments on Hacker News. February 27, 2026 at 11:48PM nottorp 10 https://ift.tt/hSRYdck Vibe coded Lovable-hosted app littered with basic flaws exposed 18K users 0 https://ift.tt/jaSpdbY