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The perils of UUID primary keys in SQLite
The perils of UUID primary keys in SQLite It's common to use random UUIDs as a primary key in databases. One of the known downsides of random UUIDs is that their unordered nature (UUID4) can cause a lot of extra paging for the clustered index because you are inserting rows randomly into the Btree and having to re-balance it. This post tries to help us develop a more visceral understanding of the performance cost of all that extra paging.
Show HN: Mnemo – local-first AI memory layer for any LLM (Rust, SQLite,petgraph)
Local-first AI memory layer for any LLM. Persistent knowledge graph, entity extraction, semantic retrieval — no cloud required. Most LLMs forget everything the moment a conversation ends.
The Smart TV in Your LivingRoom Is a Node in the AIScraping Economy
The work at Include Security has us working with AI day in and day out (hacking it, using it, training it, etc). We’re all aware of the community-level opposition happening against datacenters, aimed at improving AI capabilities, being built recently. What you might not be aware of are the distributed efforts to train AI that could be using the devices inside your home.
Meta's ships facial recognition on smart glasses
Meta's smart glasses companion app ships a complete, dormant face-recognition pipeline on a stock account. Stella is the companion app for Meta's smart glasses. Inspecting version 273.0.0.21 of the Android build (com.facebook.stella ), I found the entire computational and storage stack for on-device facial recognition: three face models, a local database schema, a cosine-similarity vector index dimensioned to match the models, a write path that stages biometric records to disk, a fully wired...
Netflix wiz creates app to slash AI bills, then open sources it
As the COOs from both Uber and Microsoft recently learned, encouraging company engineers to use AI aggressively can lead to hefty usage bills, perhaps even offsetting all the gains from laying off employees. The AI bills at Netflix may not be so eye-popping thanks to company senior engineer Tejas Chopra, who has created software to prune agent instructions, as measured in tokens, before they hit the LLM. Chopra has estimated that as much as 90% of tokens are redundant to the giant thinking...
Avian Visitors
Avian Visitors I was initally planning on leaving this as a ‘true’ personal project of sorts. I love a good project writeup of course, but frankly I thought this was too quick an afternoon project to warrant any more documentation than a tweet. Twitter thought otherwise … i mounted a tiny microphone on my apartment balcony to listen for any birds passing by and built a site to collage them as they're heard pic.twitter.com/85KrLRL5tu —