frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Open in hackernews

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

https://github.com/valdanylchuk/breezydemo
62•isitcontent•2h ago
Example repo: https://github.com/valdanylchuk/breezydemo

The underlying ESP-IDF component: https://github.com/valdanylchuk/breezybox

It is something like Raspberry Pi, but without the overhead of a full server-grade OS.

It captures a lot of the old school DOS era coding experience. I created a custom fast text mode driver, plan to add VGA-like graphics next. ANSI text demos run smooth, as you can see in the demo video featured in the Readme.

App installs also work smoothly. The first time it installed 6 apps from my git repo with one command, felt like, "OMG, I got homebrew to run on a toaster!" And best of all, it can install from any repo, no approvals or waiting, you just publish a compatible ELF file in your release.

Coverage:

Hackaday: https://hackaday.com/2026/02/06/breezybox-a-busybox-like-she...

Hackster.io: https://www.hackster.io/news/valentyn-danylchuk-s-breezybox-...

Reddit: https://www.reddit.com/r/esp32/comments/1qq503c/i_made_an_in...

Comments

mrlonglong•1h ago
Would it be possible to port it to run on the rp2350?
isitcontent•23m ago
Some parts of it, very likely. The shell is just linenoise with some glue code. How are things with ELF loading on rp2350, I did not check. May be possible, the question is, how much effort. In ESP-IDF that is a standard component now.
its_magic•1h ago
Cool project!
galangalalgol•1h ago
Doesn't the lack of a flat memory model make a genral os difficult? The amiga1000 had far less processing power and about the same memory, with no mmu, but that memory model was flat. Did you have to do weird things to work around it?
apitman•1h ago
Can you expound on this problem a bit? I'm still pretty new to MCUs.
isitcontent•27m ago
The memory model is flat enough. The problem with the memory is, you only have about 200kB traditional RAM. But then, you have 8MB of PSRAM. But it requires strict 4-byte alignment, and is noticeably slower.

What makes traditional OSs difficult on this platform, is the lack of memory protection. But I am a simple man, I am not writing an OS, all I wanted was a usable shell and an apps installer, so I made that work.

vegadw•1h ago
Being instant-on is so, so cool. I really like seeing projects like this and Adafruit's Fruit Jam as they really show "Yeah, by having all this junk in the way, we do lose some things"

Absolutely would give something like this to a kid as a first computer.

apitman•1h ago
Hey you're the xcc700 guy! Very cool stuff. I've been interested lately in using MCUs for general purpose compute. I wonder how far you could push it.
isitcontent•12m ago
Right, people were asking about the shell used in the xcc700 demo, so that is released now too, and I tried to make it convenient to reuse as a component.

Esp32-s3 can do so much more, we are just scratching the surface. You might remember FabGL, that ran some nice demos in the realm of games and DOS emulation. Unfortunately, seems to be hard to update for modern versions of ESP-IDF. I am trying to build something more modular, with hope that some parts of it will survive longer.

I think someone also ran an old version of MacOS simulated on it, too, that is also an indication of the general capability.

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

https://github.com/valdanylchuk/breezydemo
62•isitcontent•2h ago•9 comments

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

https://vecti.com
192•vecti•4h ago•91 comments

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

https://github.com/phreda4/r3
24•phreda4•1h ago•2 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
24•nwparker•1d ago•5 comments

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

https://docs.smooth.sh/cli/overview
70•antves•1d ago•55 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
13•JoshPurtell•22h ago•3 comments

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

https://eljojo.github.io/rememory/
105•eljojo•5h ago•93 comments

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

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
7•NathanFlurry•10h ago•4 comments

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

https://github.com/artifact-keeper
142•bsgeraci•19h ago•57 comments

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

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

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

https://www.biotradingarena.com/hn
22•dchu17•6h ago•9 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
13•toborrm9•7h ago•5 comments

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

https://bastion-enclave.vercel.app
7•KevinChasse•7h ago•2 comments

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

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

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

https://github.com/SpOpsi/Project-Baver
2•solarV26•5h ago•0 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

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

Show HN: Agentism – Agentic Religion for Clawbots

https://www.agentism.church
2•uncanny_guzus•5h ago•0 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: BPU – Reliable ESP32 Serial Streaming with Cobs and CRC

https://github.com/choihimchan/bpu-stream-engine
2•octablock•7h ago•0 comments

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

https://github.com/BansheeTech/Disavow-Generator
5•SurceBeats•11h ago•1 comments

Show HN: Hibana – An Affine MPST Runtime for Rust

https://hibanaworks.dev
3•o8vm•8h ago•0 comments

Show HN: Beam – Terminal Organizer for macOS

https://getbeam.dev/
2•faalbane•8h ago•2 comments

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

https://happenstance.ai/epstein
4•teichman•4h ago•0 comments

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

https://wiz.jock.pl/experiments/agent-arena/
45•joozio•11h ago•47 comments

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

https://github.com/davegoldblatt/total-recall
10•davegoldblatt•23h ago•6 comments

Show HN: Hex-Fiend - mental math challenge

https://do-say-go.github.io/hexfiend/
2•keepamovin•10h ago•0 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: Hacker Backlinks – HN Stories Most Linked To By HN Comments

https://hacker-backlinks.browserbox.io/?sort=linked&p=1
4•keepamovin•17h ago•1 comments

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

https://github.com/bethington/ghidra-mcp
294•xerzes•2d ago•66 comments

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

https://safe-now.live
194•tinuviel•3d ago•94 comments