Monday, March 2, 2026
Show HN: Valkey-powered semantic memory for Claude Code sessions https://ift.tt/vuLVYmn
Show HN: Valkey-powered semantic memory for Claude Code sessions I wanted to explore Valkey's vector search capabilities for AI workloads and had been looking for an excuse to build something with Bun. This weekend I combined both into a memory layer for Claude Code. https://ift.tt/oKSztRX The problem: Claude Code has CLAUDE.md and auto memory, but it's flat text with no semantic retrieval. You end up repeating context, especially around things not to do. BetterDB Memory hooks into Claude Code's lifecycle (SessionStart, PostToolUse, PreToolUse, Stop), summarizes each session, generates embeddings, and stores everything in Valkey using FT.SEARCH with HNSW. Next session, relevant memories surface automatically via vector similarity search. The interesting technical bit is that Valkey handles all of it - vector search, hash storage for structured memory data, sorted sets for knowledge indexing, lists for compression queues. No separate vector database. There's also an aging pipeline that applies exponential decay to old memories based on recency, clusters similar ones via cosine similarity, and merges them to keep the memory store from growing unbounded. Self-hostable with Ollama for embeddings and summarization, or plug in any LLM provider. Runs on Bun, ships as compiled binaries. MIT licensed. March 3, 2026 at 12:02AM
Sunday, March 1, 2026
Show HN: Mrkd – A native macOS Markdown viewer with iTerm2/VSCode theme import https://ift.tt/vl4jx2i
Show HN: Mrkd – A native macOS Markdown viewer with iTerm2/VSCode theme import Using Opus 4.6 I built a markdown viewer for macOS that uses zero web technology. No Electron, no WebView — markdown is parsed with cmark-gfm and rendered directly to NSAttributedString via TextKit 2. The result is native text selection, native accessibility, and a ~1MB binary that launches pretty much instantly. It supports GFM tables, task lists, syntax-highlighted code blocks, and inline images. You get a built-in themes (Solarized, Dracula, GitHub, Monokai) plus the ability to import your own from iTerm2 or VS Code theme files. The part I’m most pleased with is the Quick Look integration — select a .md file in Finder, hit Space, and you get a fully themed preview using whatever theme and fonts you’ve configured in the app. No setup required; the QL extension registers automatically on first launch. It also bundles variable fonts (Geist, Inter, JetBrains Mono, iA Writer Mono, and more) so typography looks good out of the box. The whole thing is built in Swift with no dependencies beyond cmark-gfm and Highlightr. https://ift.tt/G26THns https://ift.tt/G26THns March 2, 2026 at 01:48AM
Show HN: PraxisJS – signal-driven front end framework and AI experiment https://ift.tt/OxYv0tQ
Show HN: PraxisJS – signal-driven front end framework and AI experiment I built PraxisJS, a signal-driven frontend framework exploring what a more explicit and traceable architecture could look like. PraxisJS started as a personal project. It reflects a single perspective on frontend design, not a committee decision, not a consensus. I wanted to see how far you can push explicitness before it becomes friction. Most frameworks optimize for writing less. PraxisJS questions that tradeoff. @State doesn’t suggest reactivity, it is reactive, visible in the code. Signals reach the DOM without a reconciliation layer in between (the renderer is still evolving toward that goal). It also became an AI-assisted experiment, not to automate thinking, but to pressure-test ideas. Some parts came from that collaboration. Some exist because it failed. v0.1.0 beta, experimental, not production-ready. But the ideas are real. https://praxisjs.org/ March 2, 2026 at 12:57AM
Show HN: Panel Panic a Rust/Macroquad/WASM Panel de Pon/Tetris Attack Clone https://ift.tt/JSeg6Tw
Show HN: Panel Panic a Rust/Macroquad/WASM Panel de Pon/Tetris Attack Clone Rust/macroquad game with single player AI mode, online VS, and local 1v1. All running via WASM in the browser. Still WIP as art assets still need to be added and tweaked. Full disclosure. Used Claude Opus, Nanobanana, and SunoAI a huge amount to do the heavy lifting for this project https://panel-panic.com March 1, 2026 at 10:48PM
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