Show HN: An immutable ostree-based Arch Linux image https://ift.tt/qfywFB9

Show HN: An immutable ostree-based Arch Linux image i've been a big fan of fedora's atomic distros and i decided to make my own but arch based to get the best of both worlds, which is kind of funny now because it looks exactly like silverblue. is it worth it? not sure, but it's been a interesting experience – and it's usable as a daily driver if your specs match. worth noting that because of the constraints of the setup you can develop something similar on your main machine without any realistic possibility of data loss since you never really touch the bootloader or the filesystem (partitioning and so on). https://ift.tt/DqerhX9 December 27, 2025 at 10:47AM

Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize https://ift.tt/0cJ8S1F

Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize Hey HN! I'm Baha, creator of Mysti. The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion. The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your request, debate approaches, then synthesize the best solution. Your prompt → Agent 1 analyzes → Agent 2 analyzes → Discussion → Synthesized solution Why this matters: each model has different training and blind spots. Two perspectives catch edge cases one would miss. It's like pair programming with two senior devs who actually discuss before answering. What you get: * Use your existing subscriptions (no new accounts, just your CLI tools) * 16 personas (Architect, Debugger, Security Expert, etc) * Full permission control from read-only to autonomous * Unified context when switching agents Tech: TypeScript, VS Code Extension API, shells out to claude-code/codex-cli/gemini-cli License: BSL 1.1, free for personal and educational use, converts to MIT in 2030 (would love input on this, does it make sense to just go MIT?) GitHub: https://ift.tt/Urfk1tD Would love feedback on the brainstorm mode. Is multi-agent collaboration actually useful or am I just solving my own niche problem? https://ift.tt/Urfk1tD December 23, 2025 at 10:18AM

Show HN: Ez FFmpeg – Video editing in plain English https://ift.tt/W4mv9NE

Show HN: Ez FFmpeg – Video editing in plain English I built a CLI tool that lets you do common video/audio operations without remembering ffmpeg syntax. Instead of: ffmpeg -i video.mp4 -vf "fps=15,scale=480:-1:flags=lanczos" -loop 0 output.gif You write: ff convert video.mp4 to gif More examples: ff compress video.mp4 to 10mb ff trim video.mp4 from 0:30 to 1:00 ff extract audio from video.mp4 ff resize video.mp4 to 720p ff speed up video.mp4 by 2x ff reverse video.mp4 There are similar tools that use LLMs (wtffmpeg, llmpeg, ai-ffmpeg-cli), but they require API keys, cost money, and have latency. Ez FFmpeg is different: - No AI – just regex pattern matching - Instant – no API calls - Free – no tokens - Offline – works without internet It handles ~20 common operations that cover 90% of what developers actually do with ffmpeg. For edge cases, you still need ffmpeg directly. Interactive mode (just type ff) shows media files in your current folder with typeahead search. npm install -g ezff https://ift.tt/mf9wHZn December 27, 2025 at 05:45AM

Show HN: ISON – Data format that uses 30-70% fewer tokens than JSON for LLMs https://ift.tt/ChJH7eD

Show HN: ISON – Data format that uses 30-70% fewer tokens than JSON for LLMs ISON (Interchange Simple Object Notation) - a data format optimized for LLMs and Agentic AI. The problem: JSON wastes tokens. Curly braces, quotes, colons, commas - all eat into your context window. ISON uses tabular patterns that LLMs already understand from training data: JSON (87 tokens): { "users": [ {"id": 1, "name": "Alice", "email": "alice@example.com"}, {"id": 2, "name": "Bob", "email": "bob@example.com"} ] } ISON (34 tokens): table.users id:int name:string email 1 Alice alice@example.com 2 Bob bob@example.com Features: - 30-70% token reduction - Type annotations - References between tables - Schema validation (ISONantic) - Streaming format (ISONL) Implementations: Python, JavaScript, TypeScript, Rust, C++ 9 packages, 171+ tests passing pip install ison-py # Parser pip install isonantic # Validation & schemas npm install ison-parser # JavaScript npm install ison-ts # TypeScript with full types npm install isonantic-ts # Validation & schemas [dependencies] ison-rs = "1.0" isonantic-rs = "1.0" # Validation & schemas Looking for feedback on the format design. https://ift.tt/Uug7qd4 December 26, 2025 at 08:38PM

Show HN: GeneGuessr – a daily biology web puzzle https://ift.tt/Qtwx3se

Show HN: GeneGuessr – a daily biology web puzzle I made a web game inspired by Geoguessr and Wordle, where you get shown a 3D model of a random human protein each day, and you have to triangulate its gene name using similarity clues. My background is in wet lab molecular biology and I intend this game to be engaging mostly to other biologists. But if you're outside the field, I'm interested to know if you can still solve it with browser use LLMs, and if you learned something interesting doing so. Let me know what you think. I made it with Claude over the last 2 months. My coding experience is limited to basic python data analysis and figure making. I've seen people online asking, "Now that we have coding AI, why isn't there a deluge of awesome AI-generated apps made by non-coders?" - if this sounds like you, check out Geneguessr to understand what a web app by a non-coder looks like. I might write more about the process if there's a demand, but what really unlocked the project for Claude was Linear MCP, where it could put each individual issue on a shared Kanban board. This, and Playwright MCP for testing on live site, were the two workhorses that got me through this. For bugs Claude couldn't one-shot, Linear was great for consolidating issue information so that I could dump it into ChatGPT Codex - it would usually think for like half an hour, output very confusing explanations, but the bug was gone. Game is free, no log-in required, sorry if you run into any mobile bugs - didn't test it much there. https://ift.tt/W2NABTi https://ift.tt/W2NABTi December 23, 2025 at 06:40AM

Show HN: A Claude Code plugin that catch destructive Git and filesystem commands https://ift.tt/hwPoV8G

Show HN: A Claude Code plugin that catch destructive Git and filesystem commands https://ift.tt/36pIP9u December 26, 2025 at 12:14AM

Show HN: Gaming Couch – a local multiplayer party game platform for 8 players https://ift.tt/kzo7VyF

Show HN: Gaming Couch – a local multiplayer party game platform for 8 players Hi HN, I’ve been working on Gaming Couch, a web-based game platform where up to 8 players use their smartphones as controllers to play real-time action mini-games on a central browser screen. TL;DR: - 18 competitive mini-games for up to 8 players - Runs entirely in the browser - Phones act as controllers (no apps, no accounts required) - Focused on fast, chaotic, real-time party games (no trivia) - Currently in public early access Try it here: https://gamingcouch.com . Open the link on a computer, host a session, scan the QR code with your phone(s) and play! What is it? Gaming Couch is a party game platform where friends play short competitive action games together on one screen, using their phones as controllers (there's also support for physical gamepads if that's more your thing!) I intentionally avoided trivia and text-heavy games. Many people don’t write or read English fluently, and I wanted games where reaction, timing, and chaos matter more than spelling. It’s currently in early public access with 18 mini-games, all made by me and a two friends. All game rounds last ~1 minute, scores carry over, and after each round players vote on the next game. If you’re solo, 3 games support bots, but it’s best with a full couch of people as half the fun comes from the social aspect of playing together! Why I built it: For the last 15+ plus years, me and my friends have loved video game nights but organizing them has always been a PITA when you have more than 4 people playing: - Different games were under different Steam accounts requiring downloads and installation. - Extra controllers were missing (somebody forgot to bring theirs) or they wouldn’t pair. - Consoles were expensive and not always available if we were on the road. Once I started building it, other dev friends asked if they could make games for it too, which led me to realize this could also be a platform for small party games, especially for gamejam devs who don’t want to or have time to build multiplayer infrastructure from scratch. This is why supporting third-party games is the next major feature I’m working on. Tech stack: - Games run locally in the host’s browser (no streaming of games) - Phones connect via WebRTC to the host session (1–10ms latency in ideal conditions with P2P connection) - Fallback to TURN when direct P2P connection isn’t possible e.g. due to strict firewall settings in corporate networks or use of VPN's - Website/Platform made with React + TypeScript - Existing games made with Unity or just plain JS/TS. - Backend: Supabase (Postgres + auth only, currently only used for optional user accounts) How is it different from e.g. Jackbox, Airconsole or Nintendo? Jackbox is absolutely great, but it’s heavily dependent on English literacy and "being funny" on the spot. I wanted something focused on fast, chaotic, real-time action games that work even if your friends speak different languages or just want to smash buttons. Also, I'm not a fan of their party pack model... AirConsole is the most well known comparison to Gaming Couch in terms of technology and execution, but I feel there is a gap for a curated experience where the UI is unified, rounds are 60 seconds, and the competitive "meta-game" (scoreboards/voting) is baked into the platform. And in any case AirConsole was acquired by a car-software company and have pivoted their focus from couch gaming toward in-car entertainment. Nintendo games are usually the gold standard in the party game category but the HW and games cost so much! With Gaming Couch, I want to keep the accessibility threshold as low as possible so everyone is able to play without upfront HW or SW costs. What do you think of this? Are you an interested player or perhaps a developer who has had an idea to develop a fun 8 player mini-game but has been daunted by the idea thus far? https://gamingcouch.com December 21, 2025 at 10:08AM