AirSnitch: Demystifying and breaking client isolation in Wi-Fi networks [pdf]

Hey HN - we&#x27;re Saksham and Ishan, and we’re building Cardboard (<a href="https:&#x2F;&#x2F;www.usecardboard.com">https:&#x2F;&#x2F;www.usecardboard.com</a>). It lets you go from raw footage to an edited video by describing what you want in natural language. There’s a demo video at <a href="https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;fUN2i9ft8B46">https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;fUN2i9ft8B46</a>, and you can try the product out at <a href="https:&#x2F;&#x2F;demo.usecardboard.com">https:&#x2F;&#x2F;demo.usecardboard.com</a> (no login required!)People sit on mountains of raw assets - product walkthroughs, customer interviews, travel videos, screen recordings, changelogs, etc. - that could become testimonials, ads, vlogs, launch videos, etc.Instead they sit in cloud storage &#x2F; hard drives because getting to a first cut takes hours of scrubbing through the raw footage manually, arranging clips in correct sequence, syncing music, exporting, uploading to a cloud storage to share, and then getting feedback on WhatsApp&#x2F;iMessage&#x2F;Slack, then re-doing the same thing again till everyone is happy.We grew up together and have been friends for 15 years. Saksham creates content on socials with ~250K views&#x2F;month and kept hitting the wall where editing took longer than creating. Ishan was producing launch videos for HackerRank&#x27;s all-hands demo days and spent most of his time on cuts and sequencing rather than storytelling. We both felt that while tools like Premiere Pro and DaVinci are powerful, they have a steep learning curve and involve lots of manual labor.So we built Cardboard. You tell it to &quot;make a 60s recap from this raw footage&quot; or &quot;cut this into a 20s ad&quot; or &quot;beat-sync this to the music I just added&quot; and it proposes a first draft on the timeline that you can refine further.We built a custom hardware-accelerated renderer on WebCodecs &#x2F; WebGL2, there’s no server-side rendering, no plugins, everything runs in your browser (client-side). Video understanding tasks go through a series of Cloud VLMs + traditional ML models, and we use third party foundational models for agent orchestration. We also give a dropdown for this to the end user.We&#x27;ve shipped 13 releases since November (<a href="https:&#x2F;&#x2F;www.usecardboard.com&#x2F;changelog">https:&#x2F;&#x2F;www.usecardboard.com&#x2F;changelog</a>). The editor handles multi-track timelines with keyframe animations, shot detection, beat sync via percussion detection, voiceover generation, voice cloning, background removal, multilingual captions that are spatially aware of subjects in frame, and Premiere Pro&#x2F;DaVinci&#x2F;FCP XML exports so you can move projects into your existing tools if you want.Where we&#x27;re headed next: real-time collaboration (video git) to avoid inefficient feedback loops, and eventually a prediction engine that learns your editing patterns and suggests the next low entropy actions - similar to how Cursor&#x27;s tab completion works, but for timeline actions.We believe that video creation tools today are stuck where developer tools were in the early 2000s: local-first, zero collaboration with really slow feedback loops.Here are some videos that we made with Cardboard:
- <a href="https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;YYsstWeWE9KI">https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;YYsstWeWE9KI</a>
- <a href="https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;nyT9oj93sm1e">https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;nyT9oj93sm1e</a>
- <a href="https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;xK9mP2vR7nQ4">https:&#x2F;&#x2F;www.usecardboard.com&#x2F;share&#x2F;xK9mP2vR7nQ4</a>We would love to hear your thoughts&#x2F;feedback.We&#x27;ll be in the comments all day :)

Launch HN: Cardboard (YC W26) – Agentic video editor

Will vibe coding end like the maker movement?

Palm OS User Interface Guidelines (2003) [pdf]

What Claude Code Chooses

OsmAnd's Faster Offline Navigation

I baked a pie every day for a year and it changed my life

deff is an interactive Rust TUI for reviewing git diffs side-by-side with syntax highlighting and added&#x2F;deleted line tinting. It supports keyboard&#x2F;mouse navigation, vim-style motions, in-diff search (&#x2F;, n, N), per-file reviewed toggles, and both upstream-based and explicit --base&#x2F;--head comparisons. It can also include uncommitted + untracked files (--include-uncommitted) so you can review your working tree before committing.Would love to get some feedback

Show HN: Deff – side-by-side Git diff review in your terminal

Museum of Plugs and Sockets

Google API keys weren't secrets, but then Gemini changed the rules

Nano Banana 2: Google's latest AI image generation model

The Wolfram S Combinator Challenge

BuildKit: Docker's Hidden Gem That Can Build Almost Anything

Bild AI (YC W25) Is Hiring Interns to Make Housing Affordable

TerminalPhone is a single, self-contained Bash script that provides anonymous, end-to-end encrypted voice and text communication between two parties over the Tor network. It operates as a walkie-talkie: you record a voice message, and it is compressed, encrypted, and transmitted to the remote party as a single unit. You can also send encrypted text messages during a call. No server infrastructure, no accounts, no phone numbers. Your Tor hidden service .onion address is your identity.

Show HN: Terminal Phone – E2EE Walkie Talkie from the Command Line

Hi HN,I wanted to share a web game I’ve been building in HTML, JavaScript, MySQL, and PHP called LINEX.It is primarily designed and optimized to be played in the mobile browser.The idea is simple: you have an 8x8 board where you must place pieces (Tetris-style and some custom shapes) to clear horizontal and vertical lines.Yes, someone might think this has already been done, but let me explain.You choose where to place the piece and how to rotate it. The core interaction consists of &quot;drawing&quot; the piece tap-by-tap on the grid, which provides a very satisfying tactile sense of control and requires a much more thoughtful strategy.To avoid the flat difficulty curve typical of games in this genre, I’ve implemented a couple of twists:1. Progressive difficulty (The board fights back): As you progress and clear lines, permanently blocked cells randomly appear on the board. This forces you to constantly adapt your spatial vision.2. Tools to defend yourself: To counter frustration, you have a very limited number of aids (skip the piece, choose another one, or use a special 1x1 piece). These resources increase slightly as the board fills up with blocked cells, forcing you to decide the exact right moment to use them.The game features a daily challenge driven by a date-based random seed (PRNG). Everyone gets exactly the same sequence of pieces and blockers. Furthermore, the base difficulty scales throughout the week: on Mondays you start with a clean board (0 initial blocked cells, although several will appear as the game progresses), and the difficulty ramps up until Sunday, where you start the game with 3 obstacles already in place.In addition to the global medal leaderboard, you can add other users to your profile to create a private leaderboard and compete head-to-head just with your friends.Time is also an important factor, as in the event of a tie in cleared lines, the player who completed them faster will rank higher on the leaderboard.I would love for you to check it out. I&#x27;m especially looking for honest feedback on the difficulty curve, the piece-placement interaction (UI&#x2F;UX), or the balancing of obstacles&#x2F;tools, although any other ideas, critiques, or suggestions are welcome.<a href="https:&#x2F;&#x2F;www.playlinex.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.playlinex.com&#x2F;</a>Thanks!

Show HN: Linex – A daily challenge: placing pieces on a board that fights back

Google Street View in 2026

Show HN: Rev-dep – 20x faster knip.dev alternative build in Go

Steering interpretable language models with concept algebra

hey hn,i built beehive for myself mostly. it has gotten to the point where my work consists in supervising oc or cc labor at tasks for multiple issues in parallel. my set up used to be zellij with a couple tabs, each tab working in a separate dir and it was a pain to manage all that. i know i could use git worktrees but they&#x27;re kind of complicated, if you don&#x27;t know how to use them it is easy to mess up, and i just prefer letting agents run in separate dirs with their own .git and not risk it. while i like zellij and use it inside beehive, i dont like the tabs and i forget where i am half the time.beehive is a way for me to abstract that away. the heuristic is simple - hives are repos, so you basically have a bunch of hives which correspond to repos you work out of. each hive can have many combs. a comb is a dir with the copy of the repo you&#x27;re working on. fully isolated, standalone, no shared .git. so for work or for personal stuff, i usually set up the hive, and then have a bunch of combs that i jump between supervising the agents do their thing. if you have a big repo it takes a minute to clone, and you also need gh and git because i like the niceties of like checking if the repo is there at all and stuff like that.the app is open source, mit license. i went with tauri because i hate electron. also i have friends and coworkers who updated to macos 26 and i dont know if the whole mem leak thing for electron apps has been fixed. the app is like 9 megs which is nice too. most of it is written with cc, but i guided the aesthetics and the approach. works on mac and there is a dmg signed and notarized (i reactivated my apple dev credentials).sharing this to get a vibe check on the idea, also maybe this is useful for you. there are many arguments, reasonable ones, you can make for worktrees vs dirs. i just know that trees are too big brain for me, and i like simple things. if you like it, pls lmk and also if you want to help (like add linux support, or like add themes, other cool things) please make a pr &#x2F; open an issue.

Show HN: Beehive – Multi-Workspace Agent Orchestrator

Open Source Endowment – new funding source for open source maintainers

This time is different

Lidar waveforms are worth 40x128x33 words

just-bash: Bash for Agents

I&#x27;ve been delegating work to Claude Code for the past few months, and it&#x27;s been genuinely transformative—but managing multiple agents doing different things became chaos. No tool existed for this workflow, so I built one.
The ProblemWhen you&#x27;re working with AI agents (Claude Code, Cursor, Windsurf), you end up in a weird situation: - You have tasks scattered across your head, Slack, email, and the CLI - Agents need clear work items, context, and role-specific instructions - You have no visibility into what agents are actually doing - Failed tasks just... disappear. No retry, no notification - Each agent context-switches constantly because you&#x27;re hand-feeding them workI was manually shepherding agents, copying task descriptions, restarting failed sessions, and losing track of what needed done next. It felt like hiring expensive contractors but managing them like a disorganized chaos experiment.The SolutionMission Control is a task management app purpose-built for delegating work to AI agents. It&#x27;s got the expected stuff (Eisenhower matrix, kanban board, goal hierarchy) but built from the assumption that your collaborators are Claude, not humans.The killer feature is the autonomous daemon. It runs in the background, polls your task queue, spawns Claude Code sessions automatically, handles retries, manages concurrency, and respects your cron-scheduled work. One click: your entire work queue activates.The Architecture- Local-first: Everything lives in JSON files. No database, no cloud dependency, no vendor lock-in. - Token-optimized API: The task&#x2F;decision payloads are ~50 tokens vs ~5,400 unfiltered. Matters when you&#x27;re spawning agents repeatedly. - Rock-solid concurrency: Zod validation + async-mutex locking prevents corruption under concurrent writes. - 193 automated tests: This thing has to be reliable. It&#x27;s doing unattended work.The app is Next.js 15 with 5 built-in agent roles (researcher, developer, marketer, business-analyst, plus you). You define reusable skills as markdown that get injected into agent prompts. Agents report back through an inbox + decisions queue.Why Release This?A few people have asked for access, and I think it&#x27;s genuinely useful for anyone delegating to AI. It&#x27;s MIT licensed, open source, and actively maintained.What&#x27;s Next- Human collaboration (sharing tasks with real team members) - Integrations with GitHub issues and email inboxes - Better observability dashboard for daemon execution - Custom agent templates (currently hardcoded roles)If you&#x27;re doing something similar—delegating serious work to AI—check it out and let me know what&#x27;s broken.GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;MeisnerDan&#x2F;mission-control" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;MeisnerDan&#x2F;mission-control</a>

Show HN: Mission Control – Open-source task management for AI agents

Hacker Smacker adds friend&#x2F;foe functionality to Hacker News. Three little orbs appear next to every commenter&#x27;s name. Click to friend or foe a commenter and you&#x27;ll more easily spot them on future threads. Makes it easy to scroll and spot the commenters you love to read (and hate to read).Main website: <a href="https:&#x2F;&#x2F;hackersmacker.org" rel="nofollow">https:&#x2F;&#x2F;hackersmacker.org</a>Chrome&#x2F;Edge extension: <a href="https:&#x2F;&#x2F;chromewebstore.google.com&#x2F;detail&#x2F;hacker-smacker&#x2F;lmcglejmapenkiabndkcnahfkmbohmhd" rel="nofollow">https:&#x2F;&#x2F;chromewebstore.google.com&#x2F;detail&#x2F;hacker-smacker&#x2F;lmcg...</a>
Safari extension: <a href="https:&#x2F;&#x2F;apps.apple.com&#x2F;us&#x2F;app&#x2F;hacker-smacker&#x2F;id1480749725">https:&#x2F;&#x2F;apps.apple.com&#x2F;us&#x2F;app&#x2F;hacker-smacker&#x2F;id1480749725</a>
Firefox extension: <a href="https:&#x2F;&#x2F;addons.mozilla.org&#x2F;en-US&#x2F;firefox&#x2F;addon&#x2F;hacker-smacker&#x2F;" rel="nofollow">https:&#x2F;&#x2F;addons.mozilla.org&#x2F;en-US&#x2F;firefox&#x2F;addon&#x2F;hacker-smacke...</a>The interesting part is friend-of-a-friend: if you friend someone who also uses Hacker Smacker, you&#x27;ll see their friends and foes highlighted too. This lets you quickly scan long comment threads and find the good stuff based on people you trust.I built this to learn how FoaF relationships work with Redis sets, then brought the same technique to NewsBlur&#x27;s social layer. The backend is CoffeeScript&#x2F;Node.js&#x2F;Redis, and the extension works on Chrome, Edge, Firefox, and Safari.Technically I wrote this back in 2011, but never built a proper auth system until now. So I&#x27;ve been using it for 15 years and it&#x27;s been great. PG once saw it on my laptop (back when he was still moderating HN, in 2012) and remarked that it was neat.Thanks to Mihai Parparita for help with the Chrome extension sandboxing and Greg Brockman for helping design the authentication system.Source is on GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;samuelclay&#x2F;hackersmacker" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;samuelclay&#x2F;hackersmacker</a>Directly inspired by Slashdot&#x27;s friend&#x2F;foe system, which I always wished HN had. Happy to answer questions!

Show HN: Hacker Smacker – spot great (and terrible) HN commenters at a glance

He saw an abandoned trailer. Then, uncovered a surveillance network

Banned in California

Jimi Hendrix was a systems engineer

Hi HN,I recently noticed that an YC company (Run ANywhere, W26) sent me the following email:From: Aditya &lt;aditya@buildrunanywhere.org&gt;Subject: Mikołaj, think you&#x27;d like this[snip]Hi Mikołaj,I found your GitHub and thought you might like what we&#x27;re building.[snip]I have also received a deluge of similar emails from another AI company, Voice.AI (doesn&#x27;t seem to be YC affiliated). These emails indicate that those companies scrape people&#x27;s Github activity, and if they notice users contributing to repos in their field of business, send marketing emails to those users without receiving their consent. My guess is that they use commit metadata for this purpose. This includes recipients under the GDPR (AKA me).I&#x27;ve sent complaints to both organizations, no response so far.I have just contacted both Github and YC Ethics on this issue, I&#x27;ll update here if I get a response.