Show HN: I built FlipCards – a flashcard app with variations to improve learning (flipcardsapp.vercel.app)

The actual interactive map doesn't seem to work with Firefox on Linux, but does work with Chromium on Linux. I'm glad we've settled on a single browser. Competition was wasteful of resources that could be spent elsewhere, generating revenue.

Show HN: Open-sourcing our text-to-CAD app (github.com)

Show HN: Swimming in Tech Debt (helpthisbook.com)

Show HN: Stroboscopic Instrument Tuner (github.com)

Show HN: I built a public and open llms.txt endpoint for every domain (llms.page)

Show HN: Vapor – A notepad that fades away as you type (enda.sh)

Show HN: File-based ticket management with Git-like commands (github.com)

Show HN: A roguelike game that runs inside Notepad++ (github.com)

Show HN: I made a simple lead magnet delivery without techsetup (freebie.email)

Show HN: Pedantify – Simple CLI for proofreading text files via LLM (npmjs.com)

Show HN: Wormhole for Perplexity Comet (blog.gingerbeardman.com)

Show HN: Webapp to organize search for properties when renting/buying (dash.collabnest.app)

Show HN: Tallyit.co/coparents – Split costs with your baby dady (tallyit.co)

Show HN: A small browser game (PC only) built with Phaser 3 (cubic-zombies.pages.dev)

Show HN: I built FlipCards – a flashcard app with variations to improve learning (flipcardsapp.vercel.app)

Show HN: A Map of All YC Companies (5,300 Startups by Batch and Location) (yc.foundersaround.com)

Show HN: Spectral Indexing for Vector Search (tuned.org.uk)

Show HN: Scrape Congressional Stock Trading (github.com)

Show HN: Moribito – A TUI for LDAP Viewing/Queries (github.com)

Show HN: Shimmy – 5MB privacy-first, local alternative to Ollama (680MB) (github.com)

Show HN: Entropy-Guided Loop – How to make small models reason (github.com)

Show HN: LightCycle, a FOSS game in Rust based on Tron (github.com)

Show HN: Amber – better Beeper, a modern all-in-one messenger (useamber.app)

Show HN: Quicknote.zip (Daily Micro Scratchpad) (quicknote.zip)

Show HN: Invocly – Convert PDF, DOCX, and TXT files into lifelike speech (invocly.com)

Show HN: Prototyper – AI design platform with its own compiler and runtime (getaprototype.com)

Show HN: Provable Safety for AI Agents (sentinelops.xyz)

Show HN: My first Go project, a useless animated bunny sign for your terminal (github.com)

Show HN: Simple modenized .NET NuGet server reached RC (github.com)

Show HN: We built an open-source alternative to expensive pair programming apps (github.com)

Show HN: Spotilyrics – See synchronized Spotify lyrics inside VS Code (github.com)

Show HN: Prompt-to-proof: reproducible LLM eval with hash-chained receipts (github.com)

Show HN: Comfyfile - Secure, Anonymous File Sharing with Auto-Expiry No Account (comfyfile.com)

Show HN: Terragon – Run Claude Code as a Background Agent (terragonlabs.com)

Show HN: Car Chomper – A tool to visualize car sizes (carchomper.com)

Show HN: Train yourself to handle a crying baby (cry-training.vercel.app)

Show HN: I built an AI that uses a metacognitive loop 2 solve invention problems (robw1se.substack.com)

Show HN: Davia – A community platform to build, share, and edit applications (docs.davia.ai)

Show HN: Neural Siege – a text-based experiment in resisting rogue AI persuasion

Show HN: SHAde – A tool that turns Git Commit Hashes into deterministic Art (github.com)

Show HN: Built a civic issue certificate app in 1 hour (200k views) (civil-certificate.vercel.app)

Show HN: Tsuki – Lua 5.4 ported to Rust (github.com)

Show HN: Skada – Automate any workflow with a single prompt (skada.ai)

Show HN: Anonymous Age Verification (gist.github.com)

Show HN: Woomarks, transfer your Pocket links to this app or self-host it (woomarks.com)

Show HN: rm-safely – A shell alias that moves files to trash instead of deleting (github.com)

Show HN: I built a deep research tool for local file system (github.com)

Show HN: A credibility-based social platform (no Likes) to fight misinformation (noblenews.io)

Show HN: Fine-tuned Llama 3.2 3B to match 70B models for local transcripts (bilawal.net)

Show HN: Listgitfiles.sh – Fetch Raw GitHub File URLs with One Command (gist.github.com)

Show HN: A unified approach to compute sandboxes (computesdk.com)

USGS Unveils New National Geologic Map

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