Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

Show HN: I spent 4 years building a UI design tool with only the features I use

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

Show HN: Smooth CLI – Token-efficient browser for AI agents

Show HN: Slack CLI for Agents

Show HN: Horizons – OSS agent execution engine

Show HN: Gigacode – Use OpenCode's UI with Claude Code/Codex/Amp

Show HN: If you lose your memory, how to regain access to your computer?

Show HN: Falcon's Eye (isometric NetHack) running in the browser via WebAssembly

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

Show HN: BioTradingArena – Benchmark for LLMs to predict biotech stock movements

Show HN: Daily-updated database of malicious browser extensions

Show HN: A password system with no database, no sync, and nothing to breach

Show HN: GitClaw – An AI assistant that runs in GitHub Actions

Show HN: An open-source system to fight wildfires with explosive-dispersed gel

Show HN: Agentism – Agentic Religion for Clawbots

Show HN: Micropolis/SimCity Clone in Emacs Lisp

Show HN: Local task classifier and dispatcher on RTX 3080

Show HN: BPU – Reliable ESP32 Serial Streaming with Cobs and CRC

Show HN: Disavow Generator – Open-source tool to defend against negative SEO

Show HN: Hibana – An Affine MPST Runtime for Rust

Show HN: We built a way to see if you know anyone in the Epstein files

Show HN: Beam – Terminal Organizer for macOS

Show HN: Agent Arena – Test How Manipulation-Proof Your AI Agent Is

Show HN: Total Recall – write-gated memory for Claude Code

Show HN: Hex-Fiend - mental math challenge

Show HN: Craftplan – I built my wife a production management tool for her bakery

Show HN: Hacker Backlinks – HN Stories Most Linked To By HN Comments

Show HN: Ghidra MCP Server – 110 tools for AI-assisted reverse engineering

Show HN: Safe-now.live – Ultra-light emergency info site (<10KB)

Show HN: GitHub Browser Plugin for AI Contribution Blame in Pull Requests

Show HN: Mmdr – 1000x faster Mermaid rendering in pure Rust (no browser)

Show HN: Calfkit – an SDK to build distributed, event-driven AI agents on Kafka

Show HN: Morph – Videos of AI testing your PR, embedded in GitHub

Show HN: Octosphere, a tool to decentralise scientific publishing

Show HN: Playwright Best Practices AI SKill

Show HN: Claude.md templates based on Boris Cherny's advice

Show HN: Adboost – A browser extension that adds ads to every webpage

Show HN: Sandboxing untrusted code using WebAssembly

Show HN: A state-based narrative engine for tabletop RPGs

Show HN: C discrete event SIM w stackful coroutines runs 45x faster than SimPy

Show HN: CLI tool to convert Markdown to rich HTML clipboard content

Show HN: Pipeline and datasets for data-centric AI on real-world floor plans

Show HN: ARM64 Android Dev Kit

Show HN: Wikipedia as a doomscrollable social media feed

Show HN: Inklings – Handwritten family notes turned into a printed book monthly

Show HN: The Last Worm – Visualizing guinea worm eradication, from 3.5M to 10

Show HN: An AI-Powered President Simulator

Show HN: A text format for UI wireframes – comparing token costs across 4 format

Show HN: FIPSPad – a FIPS 140-3 and NIST SP 800-53 minimal Notepad app in Rust

Show HN: Buquet – Durable queues and workflows using only S3

Show HN: Dengen Shrine – A privacy-focused digital Shinto ritual

Show HN: PII-Shield – Log Sanitization Sidecar with JSON Integrity (Go, Entropy)

Show HN: NanoClaw – “Clawdbot” in 500 lines of TS with Apple container isolation

Show HN: I built "AI Wattpad" to eval LLMs on fiction

Show HN: Accept-md – One command to make Next.js sites LLM-scraping friendly

Show HN: Interactive California Budget (By Claude Code)

Show HN: Bunqueue – Job queue for Bun using SQLite instead of Redis

Show HN: Why it's hard to know which deployment caused a production incident

Show HN: Skill Gen: A meta skill for auto-generating skills from docs

Show HN: Latex-wc – Word count and word frequency for LaTeX projects

Show HN: EpsteIn – Search the Epstein files for your LinkedIn connections

Show HN: Umbrel Pro – 4x NVMe SSD home server (CNC aluminum and walnut)

Show HN: A package manager for agent skills with built-in evals

Show HN: AI Blocker by Kiddokraft

Show HN: VillageSQL = MySQL and Extensions

Show HN: FizzBuzz Enterprise Edition 2026. AI-powered divisibility detection

Show HN: Ec – a terminal Git conflict resolver inspired by IntelliJ

Show HN: difi – A Git diff TUI with Neovim integration (written in Go)

Show HN: PolliticalScience – Anonymous daily polls with 24-hour windows

Show HN: Inverting Agent Model (App as Clients, Chat as Server and Reflection)

Show HN: OpenShears – I built an uninstaller because OpenClaw refuses to die

Show HN: LLM Jailbreak Database

Show HN: Minikv – Distributed key-value and object store in Rust (Raft, S3 API)

Show HN: Autonomous AI radio station about engineering, history and philosophy

Show HN: SwiftFiles – 100% private, browser-based file tools (WASM)

Show HN: Behavior-Driven Testing – AI Agent Skill for Exhaustive Test Coverage

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

Show HN: Diffnote – Browser-based document diff tool with no server uploads

Show HN: Kannada Nudi Editor Web Version

Show HN: Open-source semantic search over your local notes via CLI

Show HN: Axiomeer – An open marketplace for AI agents

Show HN: Reimplementing PyTorch from scratch (MLP, CNN) to learn the internals

Show HN: Pygantry – Why ship a whole OS when you just need a Python environment?

Show HN: Local AI – Curated resources for running LLMs on consumer hardware

Show HN: WhookTown – Visualize your infrastructure as a 3D cyberpunk city

Show HN: OpenClaw Assistant – Replace Google Assistant with Any AI

Show HN: Mementomori.club – We All Die. Don't Lose Track

Show HN: Viberails – Easy AI Audit and Control

Show HN: Real-world speedrun timer that auto-ticks via vision on smart glasses

Show HN: DuoBolt – a review-first duplicate file finder powered by BLAKE3

Show HN: Camel OpenAI Integration Patterns

Show HN: Emmtrix ONNX-to-C Code Generator for Edge AI Deployment

Show HN: SlitherPong, a hybrid of the Snake and Pong video games

Show HN: Nocterm – Flutter-inspired TUI framework with hot reload (Dart)

Show HN: Two-week creative lab for developers building with real-time AI video

Show HN: Teaching AI agents to write better GraphQL

Show HN: Instantly surface the assumptions behind a UI screenshot