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Show HN: AI scientist builds an open-source Codex Micro from scratch for $40

https://iluvatarlabs.com/blog/2026/08/how-we-cloned-openai-codex-micro/
2•ben_iluvatar•4h ago
A few weeks ago, we open-sourced our design for a cost-effective but full featured alternative to OpenAI x Work Louder's sold out Codex Micro macropad. And now, we're pleased to share that we've actually built them and they work!

Quick recap of the I/O: - 13 assignable keys with individual LEDs - rotary encoder - joystick - touch disc - optional edge-lit LED band

The cool part for us was just HOW our agent was able to do it when every other agentic skills, tools, and even commercial platforms failed. We put together a more detailed writeup in the linked blog post (plus pretty pictures!), but long story short, we asked our agentic scientist, Marvin, to treat the electrical engineering as a research problem.

Marvin was able to synthesize vast technical documents and best practice guidelines (e.g. scientific literature), test specific placement and routing strategies (e.g. experiments), and selectively backtrack and combine learnings (e.g. interpreting data analysis). The end result was a fully routed board (made especially challenging by some hard constraints to keep cost down) plus a reusable runbook worfklow that demonstrated Marvin's ability to enter an unfamiliar domain, learn and improve through experimentation, and unlock novel capabilities.

Some future work we've got marinating in our mind grapes: - an app for cross coding agent compatibility (shoutout to lop1381997 for contributing a codex-native firmware) - optional OLED screen, something like an SSD1306 that could fit right into the space between the knob and joystick - optional base with bluetooth and battery for full wireless functionality

Let us know what you think, have any ideas or feature requests, and share pictures if you build it!

Repo: https://github.com/yuz207/agentpad13 Configurator: https://yuz207.github.io/agentpad13/configurator/site/

Show HN: Build your own theme park

https://www.magicpatterns.com/theme-park
15•thealexanderlee•5h ago•5 comments

Show HN: We built the smallest dual-band aircraft tracker

https://pantsforbirds.com/the-worlds-smallest-dual-band-ads-b-receiver-module/
14•CoolNamesAllTkn•1h ago•2 comments

Show HN: Devx – Autonomous AI coding agent built for Android Termux and desktop

https://github.com/apvcode/Termux-Dev
7•apvcode•1h ago•1 comments

Show HN: Every push-up becomes an attack in a camera-counted RPG game

https://pushup.quest/
16•not_wowinter13•1h ago•6 comments

Show HN: Fab Friends a crowdfunding site for Rwandan college students

https://www.joinfabfriends.org
3•muramira•48m ago•0 comments

Show HN: Invader – an indie iOS podcast player that never phones home

https://invader.gg/
2•HeadOfProbing•1h ago•3 comments

Show HN: Timber (iOS) and Timber Tabs (Mac) – best offline read-aloud LLMs

https://timberreader.com/
9•Fe2_O3•5h ago•0 comments

Show HN: NetSour, the modular packet analyzer TUI

https://github.com/thegoodduck/NetSour
2•thegoodduck•2h ago•0 comments

Show HN: Infra Lang – Compile a Single DSL to K8s, Compose, Helm and Terraform

3•Tuvi•2h ago•0 comments

Show HN: Find Perth jobs. Hire local talent

https://jobsinperth.com.au
2•wowinter15•2h ago•0 comments

Show HN: Ten_cubed – Artificially restricted social graph

https://tencubed.dev
3•darkpicnic•2h ago•0 comments

Show HN: TexLite – A lightweight self-hosted LaTeX workspace

https://github.com/SWUFE-DB-Group/TexLite
19•thisispi•7h ago•0 comments

Show HN: Convolens – Real time slides and fact-checking

https://demo.convolens.ai
3•Banbanaste•2h ago•0 comments

Show HN: Bury.lol – a $2 pixel-art graveyard for things that died

https://bury.lol/
9•alertcubes•7h ago•0 comments

Show HN: Railo – Deterministic security patch bot using AST and Z3 (no LLMs)

https://www.railo.dev
3•mdzariflatif•4h ago•0 comments

Show HN: Use GLM-5.3 in Cursor today via tokengo API

https://www.tokengo.com
3•bingus-bongo•2h ago•2 comments

Show HN: Collete-01 - Person in a Model

https://colette.genexperiences.com/
2•quicheshore2003•3h ago•1 comments

Show HN: Notificator – Send website events to push, email, MQTT and hardware

https://notificator-project.com/get-started/
2•vagelisp•3h ago•1 comments

Show HN: Buslens – where can I get to by bus? (UK)

https://rupertlinacre.com/buslens/
77•RobinL•14h ago•54 comments

Show HN: LatticeDB – Like SQLite but for graph databases

https://github.com/jeffhajewski/latticedb
177•smiths1999•1d ago•48 comments

Show HN: De-Spark, migrate a GitHub Spark export off the private SDK

https://deespark.space
2•sarthakkuwar1•3h ago•0 comments

Show HN: SSH Session Monitor – read-only Windows OpenSSH monitoring

https://github.com/issacnitin/SshSessionMonitor
3•issacnitin•5h ago•0 comments

Show HN: I wrote a BASIC interpreter that boots on UEFI machines

https://tarjan.itch.io/thoreaubasic
153•Gorsefound•3d ago•41 comments

Show HN: Family sync with no server – Apple-signed entitlements on iOS

https://receiptiq.me/blog-family-sync-architecture
3•nichliu•5h ago•0 comments

Show HN: Nodusfall Wiki – Tracking Verified Game Information and Updates

https://nodusfallwiki.org/
2•richardharmer•3h ago•0 comments

Show HN: AI scientist builds an open-source Codex Micro from scratch for $40

https://iluvatarlabs.com/blog/2026/08/how-we-cloned-openai-codex-micro/
2•ben_iluvatar•4h ago•0 comments

Show HN: Prompt Builder – Free Templates

https://www.promptbuilder.space/templates
14•LandoLorinse•8h ago•0 comments

Show HN: Chroncal – A TUI for Calendar

https://github.com/DouglasdeMoura/chroncal
2•douglasdemoura•4h ago•0 comments

Show HN: TeXbrain, a LaTeX editor that runs pdfTeX in the browser via WASM

https://github.com/swimmingbrain/texbrain
116•swimmingbrain•1d ago•27 comments

Show HN: Caniuse for spreadsheet functions, every LibreOffice result executed

https://canispreadsheet.com/
2•aflabs•5h ago•1 comments