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

https://github.com/valdanylchuk/breezydemo
259•isitcontent•19h ago•28 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

https://github.com/sandys/kappal
14•sandGorgon•2d ago•3 comments

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

https://vecti.com
358•vecti•21h ago•161 comments

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

https://eljojo.github.io/rememory/
330•eljojo•21h ago•201 comments

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

https://github.com/phreda4/r3
79•phreda4•18h ago•14 comments

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

https://docs.smooth.sh/cli/overview
94•antves•2d ago•70 comments

Show HN: MCP App to play backgammon with your LLM

https://github.com/sam-mfb/backgammon-mcp
3•sam256•3h ago•1 comments

Show HN: Slack CLI for Agents

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

Show HN: XAPIs.dev – Twitter API Alternative at 90% Lower Cost

https://xapis.dev
3•nmfccodes•1h ago•1 comments

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

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

Show HN: I'm 75, building an OSS Virtual Protest Protocol for digital activism

https://github.com/voice-of-japan/Virtual-Protest-Protocol/blob/main/README.md
7•sakanakana00•4h ago•1 comments

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

https://github.com/artifact-keeper
153•bsgeraci•1d ago•64 comments

Show HN: I built Divvy to split restaurant bills from a photo

https://divvyai.app/
3•pieterdy•4h ago•1 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
17•denuoweb•2d ago•2 comments

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

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
19•NathanFlurry•1d ago•9 comments

Show HN: I Hacked My Family's Meal Planning with an App

https://mealjar.app
2•melvinzammit•6h ago•0 comments

Show HN: I built a free UCP checker – see if AI agents can find your store

https://ucphub.ai/ucp-store-check/
2•vladeta•6h ago•2 comments

Show HN: Compile-Time Vibe Coding

https://github.com/Michael-JB/vibecode
10•michaelchicory•8h ago•3 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
173•vkazanov•2d ago•49 comments

Show HN: Slop News – HN front page now, but it's all slop

https://dosaygo-studio.github.io/hn-front-page-2035/slop-news
17•keepamovin•9h ago•5 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•1d ago•8 comments

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

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
6•rahuljaguste•18h ago•1 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
23•JoshPurtell•1d ago•5 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: Fitspire – a simple 5-minute workout app for busy people (iOS)

https://apps.apple.com/us/app/fitspire-5-minute-workout/id6758784938
2•devavinoth12•12h ago•0 comments

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

https://github.com/adityaprasad-sudo/Explore-Singapore
4•ambitious_potat•12h ago•4 comments

Show HN: Sem – Semantic diffs and patches for Git

https://ataraxy-labs.github.io/sem/
2•rs545837•13h ago•1 comments

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

https://bastion-enclave.vercel.app
12•KevinChasse•1d ago•16 comments

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

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

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

https://github.com/SawyerHood/gitclaw
10•sawyerjhood•1d ago•0 comments
Open in hackernews

Show HN: A MCP server to evaluate Python code in WASM VM using RustPython

https://github.com/tuananh/hyper-mcp/tree/main/examples/plugins/eval-py
41•tuananh•8mo ago

Comments

digdugdirk•8mo ago
Is there a list of these "code sandboxes" floating around somewhere? It seems like it's going to be more and more important with LLMs playing more of a factor in development moving forward.
ushakov•8mo ago
i work on E2B, we are open-source sandbox runtime used by Perplexity, Manus, Hugging Face among others.

check it out: https://e2b.dev

benno128•8mo ago
I've got one that uses WebAssembly to run Python, Ruby, C/C++, JS: https://runno.dev/articles/sandbox/
aitchnyu•8mo ago
Is there a better way to sandbox Python other than using a webassembly build?
benno128•8mo ago
Yeah for sure: run it inside a virtual machine, or do some sort of docker magic.

You kind of need to pretend you are a whole computer for a programming language to be happy. There's built in assumptions they're running on a "real" computer. They assume they've got full access to network and disk. Installing packages often requires compiling C extensions, or running native binaries. All that stuff means the best way to sandbox is to virtualise a whole computer.

It's fun to do it with WebAssembly though, you get a lot of guarantees and it's quite light weight.

apitman•8mo ago
You should repost that article on HN. WASI in the browser is awesome and I would love to see some discussion about it.
someguy101010•8mo ago
https://github.com/r33drichards/mcp-js mcp for running javascript locally and safely using v8
sudb•8mo ago
I know of https://modal.com/, which I believe is used by Codegen and Cognition.

Anecdotally-speaking, I hear that many companies in the LLM agent space roll their own sandbox solutions - I've heard of both Firecracker- and Kubernetes-based implementations.

apignotti•8mo ago
Does anyone know if there is work on the idea of letting MCP-like "servers" run on the client-side? I.e. in the same browser tab as ChatGPT or Claude?

This specific example would make much more sense if it could run sandboxed client-side.

TZubiri•8mo ago
Sounds cool. We already have browser use though!

You can also roll your own with selenium and c vision or selectors.

nilslice•8mo ago
all of the servers deployed to mcp.run[0] are Wasm modules, and can run client side. they run in our cloud too, but you could use mcpx to pull them locally instead.

you can also get the raw wasm via our API and run them anywhere you can run Extism[1], the open source wasm runtime & framework that underpins it all. (Including this hyper-mcp project!)

[0]: https://mcp.run [1]: https://github.com/extism/extism

TZubiri•8mo ago
Or just use Chatgpt.
ubermonkey•8mo ago
I cannot be the only GenX nerd who reads that and thinks "Master Control Program" from Tron.