dangoodmanUT

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  1. Tinysandbox already had a WASM-based JS runtime that worked where you could run Rust or NodeJS. This makes it so you can run isolated JS anywhere WASM runs, including the browser ([1]), Cloudflare Workers, and Convex v8…

  2. Hi HN! Got nerd-sniped by the "Git at any scale"[1] blog post and made a generalized version of their S3 WAL with support for read replicas. Instead of a single WAL file like theirs, WalTier has snapshots so it can be a…

  3. We needed hyper-lightweight sandboxes for massively parallel agent fanout that could be recycled in milliseconds, take only KBs of memory when not actively running a command, and can work with bottomless filesystems.…

  4. Where Agents Converge (danthegoodman.substack.com)
  5. Made this proxy as a method for enabling "bucket per deployment" without having to worry about S3 provider quotas. Great for giving each agent their own S3 bucket without having to worry about cleaning it up to reclaim…

  6. To power the firewalling for our agents so that they couldn't contact arbitrary services, I build netfence. It's like Envoy but for eBPF filters. It allows you to define different DNS-based rules that are resolved in a…

  7. Threw together this very specific proxy that allows the downstream to define which IP will be used for the proxied request, and has built-in rate limiting mechanism to coordinate upstream rate limiting across clients.…

  8. We need more databases (danthegoodman.substack.com)
  9. Hey HN! I got nerd-sniped by Bloom Filters this weekend, specifically for searching datasets with high "cardinality" (number of unique items). They're an _amazing_ data structure that, at a fixed size, tracks potential…

  10. Ah yes, agentic phishing, excellent (danthegoodman.substack.com)
  11. LLMs don't know what they are talking about (danthegoodman.substack.com)
  12. I Hate the Sunfish (old.reddit.com)