Show HN: Rmux – A programmable terminal multiplexer with a Playwright-style SDK

Show HN: I reverse engineered Apple's video wallpapers

Show HN: I made a tactical map-based WWII submarine simulator (public beta)

Show HN: Let agents run any analysis with Mixpanel data, no UI required

Show HN: The Hanging Sculptures of the Xiaoxitian

Show HN: Six legendary marketers walk into a workflow

Show HN: CPU-only transcription for YouTube, TikTok, X, Instagram videos

Show HN: AI that interviews participants instead of holding another meeting

Show HN: Forge – Guardrails take an 8B model from 53% to 99% on agentic tasks

Show HN: Physics AI – Visualizing physics problems with step-by-step derivations

Show HN: I made a tool for learning scales, chords, and how to combine them

Show HN: PocketWebTools – Private AI tools that run in the browser

Show HN: ChangeSpec is an open specification for software change communication

Show HN: Lance – image/video generation and understanding in one model

Show HN: Dari-docs – Optimize your docs using parallel coding agents

Show HN: Gaussian Splat of a Strawberry

Show HN: Superlog (YC P26) – Observability that installs itself and fixes bugs

Show HN: Number Gacha, a gacha game distilled to its essence

Show HN: Files.md – Open-source alternative to Obsidian

Show HN: Handsets – A high-performance Android control CLI, built for agents

Show HN: I made a 3D pose maker for artists

Show HN: Remote Job Board

Show HN: I built Istanbul live transit map

Show HN: Haystack – Review the PRs that need human attention

Show HN: InsForge – Open-source Heroku for coding agents

Show HN: Macfigure – Mac configuration in pkl. Simple alternative to Nix-Darwin

Show HN: Hsrs – Type-Safe Haskell Bindings Generator for Rust

Show HN: Open-Source Agentic QA Harness with Memory

Show HN: Hocuspocus 4 – self-hosted Yjs collaboration backend

Show HN: Agent Chat Bridge – give AI IDE agents an async callback

Show HN: Pg_deltax, Apache-licensed alternative to TimescaleDB

Show HN: Yt-x v0.8.0 – Browse, play, and download YouTube from the terminal

Show HN: Id-agent – Token efficient UUID alternative for AI agents

Show HN: My custom Statusline for Claude Code (Python wrapper around claudeline)

Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep

Show HN: Rocksky – Music scrobbling and discovery on the AT Protocol

Show HN: Watch a neural net learn to play Snake

Show HN: IResearch – C++ search that beat Lucene and Tantivy on their benchmark

Show HN: Mezz, a curl-able WiFi sandbox for IoT pentesting

Show HN: expo-callkit-telecom – easily integrate CallKit/Core-Telecom

Show HN: A nibble-oriented CPU in Verilog to build a scientific calculator

Show HN: IgniteMS – batch text embeddings at 253K msg/s on 8x A100

Show HN: Auto-identity-remove – Automated data broker opt-out runner for macOS

Show HN: Every Lego minifigure ranked, from over 1.3M user votes

Show HN: A fast, thread-safe C hashmap with lazy sorting

Show HN: Rust Database from Scratch

Show HN: Clark-Browser – Stealth Chromium

Show HN: Epiq – Distributed Git based issue tracker TUI

Show HN: Spud – cross-platform remote control, optimised for gaming

Show HN: LibreOffice-rs – I built a pure-Rust LibreOffice using autoresearch

Show HN: Gpubook – An order book for GPU compute

Show HN: Running the second public ODoH relay

Show HN: Nibble

Show HN: Javalamp – A glowing terminal screensaver that keeps your Mac awake

Show HN: Burn, baby, burn (those tokens)

Show HN: FlashAttention-2 in Cute, from Scratch

Show HN: The user agents crawling HN today

Show HN: claude-autopilot, autonomous dev pipeline with multi-model review

Show HN: Closed Rings – A CLI-first time tracker for developers

Show HN: I built a native macOS Markdown viewer 100% with AI coding agents

Show HN: MyUUIDshop, Generate UUIDs and never worry about duplicates

Show HN: SharpSkill – A LeetCode Alternative with real interview outcomes

Show HN: Enforra – open-source action governance for AI agent tool calls

Show HN: PoC - VPN over WebRTC to Bypass Whitelists

Show HN: Bevel – Guess the book from its opening passage

Show HN: Sx – an open-source package manager for AI skills, MCPs, and commands

Show HN: Logbox – let Claude monitor your dev logs

Show HN: Search 67K .AI domains by AI-extracted tags and descriptions

Show HN: How Expensive Is Your (Steam) Wishlist?

Show HN: audio.observer – AI news jingles you didn’t ask for

Show HN: Sentilis – a folder of Markdown files becomes your bio, blog, store

Show HN: Autodidact – Self-evolving local-first AI agent

Show HN: We missed Winamp, so we built an audio player for macOS

Show HN: A sparse, compressed bitmap index in C. Better than Roaring Bitmaps?

Show HN: A self-balancing skip-list (a.k.a. "splay-list") library in C

Show HN: Noxu DB, a Rust Port of Berkeley DB Java Edition

Show HN: Barstool, a Prettier macOS Menubar

Show HN: I'm done. Flow editors are broken. And you all know it

Show HN: Resilient, A composable async resilience toolkit for rust

Show HN: Cervantes yet Another HN Reader

Show HN: Browser based sythesizer, drum machine and squencer

Show HN: Vecdb – local-first hybrid vector database in Rust (HNSW and BM25)

Show HN: Serene Bach – a Go weblog engine that runs as CGI or HTTP

Show HN: Handoff – preserve coding context when agents run out of tokens

Show HN: Clawputer – A personal AI assistant with a real computer and memory

Show HN: Better.ftp – cycling app for FTP tests without subscription

Show HN: Tracecast – open-source generative data apps built on top of Marimo

Show HN: drea – podcast ad blocker

Show HN: Beacon - The open-source layer for local AI agent visibility

Show HN: We automated Portugal visa appointment checks with computer-use agents

Show HN: Cubic Doggo, a Open-Source 12-DOF 4-Legged Robot Based on ROS2

Show HN: Eazip – Password-protected ZIPs (AES-256) in the browser, no upload

Show HN: Race to the Bottom

Show HN: TokenShield – cut your Claude Code bill 40-70%

Show HN: Dataset for AI training and fine tuning

Show HN: JDS – a Copilot skill suite for structuring AI coding behavior