Munal OS: a graphical experimental OS with WASM sandboxing

In plain words

Munal OS is an experimental operating system written in Rust that uses a unikernel architecture compiled as a single EFI binary. Instead of traditional virtual address spaces, it isolates applications by running them as WebAssembly code in an embedded engine. The system features a graphical interface with window management, mouse and keyboard support, networking capabilities, and built-in applications including a web browser, text editor, and Python terminal. It is designed for developers interested in alternative OS architectures and sandboxing approaches.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hello HN! Showing off the first version of Munal OS, an experimental operating system I have been writing in Rust on and off for the past few years. https://github.com/Askannz/munal-os It's an unikernel design that is compiled as a single EFI binary and does not use virtual address spaces for…

• 
  A DOS-like hobby OS written in Rust and x86 assembly2025 · github.com · ▲207

  To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU. https://blog.vxn.dev/rou2exos-rusted-edition

• 
  Tiny VM sandbox in C with apps in Rust, C and ZigDec 2025 · github.com · ▲196

  Minimalist, dependency-free virtual machine sandbox for microcontrollers and other resource-constrained devices. Single C file, no dynamic memory allocations, asynchronous design, pure C99 - ringtailsoftware/uvm32

• 
  A simple Unix-like operating system that runs Doom2019 · github.com · ▲233

  A Simple Unix-like operating system. Contribute to ozkl/soso development by creating an account on GitHub.

• 
  Redox Rust OS – v0.3.3 release2017 · github.com · ▲232

  Mirror of https://gitlab.redox-os.org/redox-os/redox - Release 0.3.3 - Lower Memory Usage · redox-os/redox

• 
  Zerobox – Sandbox any command with file, network, credential controlsMar 2026 · github.com · ▲141

  I'm excited to introduce Zerobox, a cross-platform, single binary process sandboxing CLI written in Rust. It uses the sandboxing crates from the OpenAI Codex repo and adds additional functionalities like secret injection, SDK, etc. Watch the demo: https://www.youtube.com/watch?v=wZiPm9BOPCg Zerobox follows the same sandboxing policy as Deno which is deny by default. The only operation that the command can run is reading files, all writes and network I/O are blocked by default. No VMs, no Docker, no remote servers. Want to block reads to /etc? zerobox…

• 
  A new hobby OS from “scratch” in C#2017 · github.com · ▲310

  A multitasking monolithic Kernel based x86 targeting Operating System written in C# from scratch aiming for high-level implementation of drivers in managed environment. - amaneureka/AtomOS

• 
  /dev/null▲468

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

• 
  Talanoa▲340

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 27d ago · corespeed.io

• IM
  I'm an airline pilot – I built interactive graphs/globes of my flights▲1,539

  Hey HN! Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history. This globe is probably my favourite so far: https://jameshard.ing/pilot/globes/all If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!

  Life & fun · 2025 · jameshard.ing

• 
  Chronicle: Cursor for Slides▲1,212

  Stunning presentations with AI. No design skills required.

  AI · 2025 · chroniclehq.com

• 
  Bubble for native mobile apps (beta)▲1,026

  Build native mobile apps for iOS and Android without code.

  Dev tools · 2025 · bble.io

• 
  Twenty▲989

  Build your Enterprise CRM with an AI-friendly SDK

  Dev tools · 2025 · twenty.com

• 
  Pally - AI Relationship Management▲949

  All your connections, across all your socials.

  AI · 2025 · pally.com

• 
  Workout.cool – Open-source fitness coaching platform▲827

  I was the main contributor to workout.lol, an open-source fitness app to easily build a workout routine. The project had traction (1.4k GitHub stars, 95 forks, ~20K visits/month), but was eventually sold due to video licensing hurdles. The new owner stopped maintaining it, and the repo went abandoned. Over the next 9 months, I sent 15 emails to try to save it : no replies. Feature requests & issues were ignored. The community was left with a "broken" tool let's say. I couldn't just let it die So I built the new version from scratch with the same open-source spirit, but a better…

  Dev tools · 2025 · github.com