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

https://github.com/valdanylchuk/breezydemo
131•isitcontent•5h ago•13 comments

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

https://vecti.com
233•vecti•7h ago•109 comments

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

https://eljojo.github.io/rememory/
152•eljojo•7h ago•117 comments

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

https://github.com/phreda4/r3
42•phreda4•4h ago•7 comments

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

https://docs.smooth.sh/cli/overview
76•antves•1d ago•56 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
36•nwparker•1d ago•7 comments

Show HN: FastLog: 1.4 GB/s text file analyzer with AVX2 SIMD

https://github.com/AGDNoob/FastLog
2•AGDNoob•1h ago•1 comments

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

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
9•NathanFlurry•12h ago•4 comments

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

https://github.com/artifact-keeper
145•bsgeraci•22h ago•60 comments

Show HN: I built a directory of $1M+ in free credits for startups

https://startupperks.directory
3•osmansiddique•2h ago•0 comments

Show HN: A Kubernetes Operator to Validate Jupyter Notebooks in MLOps

https://github.com/tosin2013/jupyter-notebook-validator-operator
2•takinosh•2h ago•0 comments

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

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
4•rahuljaguste•4h ago•1 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
20•JoshPurtell•1d ago•3 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
13•toborrm9•9h ago•5 comments

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

https://www.biotradingarena.com/hn
22•dchu17•9h ago•11 comments

Show HN: 33rpm – A vinyl screensaver for macOS that syncs to your music

https://33rpm.noonpacific.com/
3•kaniksu•3h ago•0 comments

Show HN: Chiptune Tracker

https://chiptunes.netlify.app
3•iamdan•4h ago•1 comments

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

https://bastion-enclave.vercel.app
10•KevinChasse•10h ago•5 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
170•vkazanov•1d ago•48 comments

Show HN: Local task classifier and dispatcher on RTX 3080

https://github.com/resilientworkflowsentinel/resilient-workflow-sentinel
25•Shubham_Amb•1d ago•2 comments

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

https://github.com/SawyerHood/gitclaw
7•sawyerjhood•10h ago•0 comments

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

https://github.com/SpOpsi/Project-Baver
2•solarV26•8h ago•0 comments

Show HN: Agentism – Agentic Religion for Clawbots

https://www.agentism.church
2•uncanny_guzus•8h ago•0 comments

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

https://github.com/BansheeTech/Disavow-Generator
5•SurceBeats•13h ago•1 comments

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

https://github.com/choihimchan/bpu-stream-engine
2•octablock•10h ago•0 comments

Show HN: Hibana – An Affine MPST Runtime for Rust

https://hibanaworks.dev
3•o8vm•11h ago•0 comments

Show HN: Beam – Terminal Organizer for macOS

https://getbeam.dev/
2•faalbane•11h ago•2 comments

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

https://github.com/puemos/craftplan
566•deofoo•5d ago•166 comments

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

https://github.com/davegoldblatt/total-recall
10•davegoldblatt•1d ago•6 comments

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

https://wiz.jock.pl/experiments/agent-arena/
45•joozio•14h ago•47 comments
Open in hackernews

Show HN: A kids book that introduces authorization and permissions concepts

https://authzed.com/resources/dibs-and-the-magic-library
11•samkim•1mo ago
A colleague and I made a kids' picture book that introduces authorization concepts.

We work at AuthZed and explain these concepts regularly. We thought it'd be fun to put them together in a format accessible and appealing to kids and grownups alike. It would also be helpful when explaining what we do for work and make a unique gift for our families.

The goal was a fun story first and foremost. We aimed to present concepts accessibly but made conscious decisions to simplify, knowing we couldn't be comprehensive in a picture book format. We also wanted visually appealing illustrations, so we built a custom tool to streamline exploring ideas with AI. It does reference-weighted image generation (upload references, weight which ones matter most), git-like branching for asset organization, and feedback loops that improve subsequent generations. It was built with Claude Code. Here's a screenshot: https://content.authzed.com/hubfs/screenshot-design-asset-ma...

We'd love feedback on where we chose to simplify. Did we get the tradeoffs right or did we oversimplify? And lastly, did you enjoy the story?

You can read the book online: https://authzed.com/resources/dibs-and-the-magic-library

Comments

samkim•1mo ago
One of the discussions we had in our slack was that the introduction of the New Enemy Problem on page 21 may be oversimplified. It currently relies on an unwritten assumption that the contents of the room change between days or that the previously granted permission was revoked. However, we figured setting the scenario and leaving a note that grownups could easily google for more info would be an ok tradeoff.