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

https://github.com/valdanylchuk/breezydemo
173•isitcontent•9h ago•21 comments

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

https://vecti.com
286•vecti•11h ago•129 comments

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

https://eljojo.github.io/rememory/
232•eljojo•12h ago•142 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
14•denuoweb•1d ago•1 comments

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

https://github.com/phreda4/r3
59•phreda4•8h ago•11 comments

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

https://docs.smooth.sh/cli/overview
83•antves•1d ago•60 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
45•nwparker•1d ago•11 comments

Show HN: Fitspire – a simple 5-minute workout app for busy people (iOS)

https://apps.apple.com/us/app/fitspire-5-minute-workout/id6758784938
2•devavinoth12•2h ago•0 comments

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

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
16•NathanFlurry•17h ago•6 comments

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

https://github.com/artifact-keeper
148•bsgeraci•1d ago•62 comments

Show HN: I built a RAG engine to search Singaporean laws

https://github.com/adityaprasad-sudo/Explore-Singapore
4•ambitious_potat•3h ago•4 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
23•JoshPurtell•1d ago•5 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•14h ago•5 comments

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

https://github.com/AGDNoob/FastLog
5•AGDNoob•5h ago•1 comments

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

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
4•rahuljaguste•8h ago•1 comments

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

https://www.biotradingarena.com/hn
23•dchu17•13h ago•12 comments

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

https://startupperks.directory
4•osmansiddique•6h ago•0 comments

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

https://github.com/tosin2013/jupyter-notebook-validator-operator
2•takinosh•6h ago•0 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
171•vkazanov•1d ago•49 comments

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

https://bastion-enclave.vercel.app
11•KevinChasse•14h ago•11 comments

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

https://33rpm.noonpacific.com/
3•kaniksu•8h 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: GitClaw – An AI assistant that runs in GitHub Actions

https://github.com/SawyerHood/gitclaw
9•sawyerjhood•15h ago•0 comments

Show HN: Chiptune Tracker

https://chiptunes.netlify.app
3•iamdan•8h ago•1 comments

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

https://github.com/SpOpsi/Project-Baver
2•solarV26•12h ago•0 comments

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

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

Show HN: Agentism – Agentic Religion for Clawbots

https://www.agentism.church
2•uncanny_guzus•12h ago•0 comments

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

https://github.com/BansheeTech/Disavow-Generator
5•SurceBeats•18h ago•1 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: BPU – Reliable ESP32 Serial Streaming with Cobs and CRC

https://github.com/choihimchan/bpu-stream-engine
2•octablock•14h ago•0 comments
Open in hackernews

Show HN: A 10KiB kernel for cloud apps

https://github.com/ReturnInfinity/BareMetal-Cloud
68•ianseyler•3w ago

Comments

bflesch•3w ago
Sorry this might be an extremely stupid question, but can you please explain the benefits of this and what other (larger?) alternatives are?

I understand that this "exokernel" provides more performant hardware access for software and it seems to be written from scratch in assembler.

Does this mean that one should expect a lot of security and robustness issues, which means it should only be used for internal services and never be exposed to untrusted networks?

heliumtera•3w ago
If one decides to boot an arbitrary system, pointing at whatever would be the latest version of exec.asm, it doesn't even matter what the project is today and whatever the setup script is doing. If one chooses to use this, one decides to handover the virtual machine ownership. Your system is whatever OP decides, now or in the future.

Edit: made a clear mistake here. One would clearly not be booting on lates version of exec.asm. It would be libBareMetal.asm instead.

Sorry for confusion guys, totally safe and effective

if [ -x "$(command -v curl)" ]; then curl -s -o libBareMetal.asm https://raw.githubusercontent.com/ReturnInfinity/BareMetal/m... else wget -q https://raw.githubusercontent.com/ReturnInfinity/BareMetal/m... fi

awesomeMilou•3w ago
One thing that comes to mind is latency in a HPC context.

If you can fit your entire software stack into L3 cache, you never have to access memory and benefit from insanely good latency.

This was a thing in HFT like ~5-7 years ago, where you might have bought a 28 core Xeon, disable all but one or two cores and benefit from ~30mb L3 cache, which can fit an entire Linux Kernel, an SSH server and your trading software.

yjftsjthsd-h•3w ago
Given that this is (AFAICT) a way to efficiently run exactly one program on a machine (probably a VM), I would have liked to see more time spent on the particulars of getting a program running on it. Like, can you easily run existing software on BareMetal? Could you compile nginx to run on it? Or does software have to be written specifically for this environment? And either way, how exactly do you actually build your software for/into(?) the image?
cestith•3w ago
You can’t run most Unix/Linux apps without porting.

https://github.com/ReturnInfinity/BareMetal-Examples/blob/ma...

ianseyler•3w ago
The plan is to get existing *nix programs ported over, yes. That will require some more work (ideally a compatibility layer/library).
tracker1•3w ago
I would think that with a bit of work, it should be possible to implement a baseline for a language like Rust or Go to target that environment with a "bare" application that may or may not have a direct filesystem interface to use.

Which could be pretty nice. Just Enough OS, so to speak.

messe•3w ago
Wow, that's some nostalgia for me. I remember encountering BareMetalOS and its bootloader Pure64 back when I still lurked the OSDev.org forums, probably more than 15 years ago at this point. Glad to see you're still at it!
gforce_de•3w ago
Does look alien. When Going to http://baremetal.returninfinity.com/ one can only see some b0rken plaintext in the browser:

  GET / HTTP/1HTTP/1.0 404 Not Found
  Server: BareMetal
  Content-type: text/html
  
  <!DOCTYPE html>
  <html>
   <head>
    <title>404</title>
   </head>
   <body>
    <p>404 - Not found</p>
   </boGET / HTTP/1
awesomeMilou•3w ago
Could you provide a link to a libc equivalent for this?

I was hoping for some documentation on how to get networking but I can't find anything immediately in the README

ianseyler•3w ago
Newlib has been ported: https://github.com/ReturnInfinity/BareMetal-newlib4
awesomeMilou•3w ago
Is there a system call reference somewhere?