spira-base
a knowledge base for arXiv papers
What it does
Spira Base is a self-hosted personal knowledge base designed to stockpile arXiv papers in your own database. Instead of relying on exact keyword matching, it uses semantic vector search to help you retrieve papers based on concepts, abstracts, and contextual relevance. Keep your entire research library private, fast, and completely under your control.
A self-hosted knowledge base for stockpiling arXiv papers in your own database, so you can find them again later — not just by keyword, but by how closely their content matches what you're looking for.Who it's foruniversity and graduate students, researchers, software engineers, product managers, and organizers of paper-reading groups and study sessions.What this solves Found a paper worth keeping
Does the same job
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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
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