Hi Adam,

Thanks os very much for getting back to me on this question.

I have often through that L4Re would make a GREAT ultra-lightweight HyperOS and if it could run even a lightweight Linux with Chrome browser in a VM/container thenperhaps that still might be an option although I would think that natively would be better.

Lately, I have been investigating Capability-based OS's like Genode-Labs that has a still evolving SculptOS built on the Genode libraries but still a very long ways to go, as well as have been looking at the open source Google Fuchsia OS which is also still evolving and not yet viable for this type of effort that I am planning.

While not necessarily ultra-lightweight, there is also the ChromiumOS and one flavor if it is OpenFyde that runs chromium browser, but it is still very heavy for what I was seeking.

I will continue to work a bit with L4Re and the others to see which I might be able to use for a PoC to get an initial setup for testing which can always be changed at a later time.

Thanks again and have a great day, Lonnie

On Monday, April 14, 2025 06:58 CEST, Adam Lackorzynski adam@l4re.org wrote:

Hi Lonnie,

On Tue Apr 08, 2025 at 12:37:42 -0400, Lonnie Cumberland via l4-hackers wrote:

...

I am experimenting with ultra-lightweight object capabilities-based OS's and have only briefly in the past worked a little with L4Re as I had troubles getting it to run cleanly on my Intel NUC7 (x86_64) hardware due to some type of graphics problem.  In any case, I am back to see if I can give it another go and would like to work toward building a type of ultra-lightweight Kiosk type system that might run Chromium web browser in full screen mode without any type of window manager straight from booting up.  The project that I have in mind would only use and need a fullscreen web browser, and perhaps capabilities to run containers (docker or podman) perhaps so that I could run a local web server and some other things in the containers.

Not sure if L4Re is able to handle all of this, but I wanted to ask, just in case.

That's indeed an interesting project! Definitely not today, as both a browser as well as container tech do require features of the OS that are not available. Things are improving gradually and running a web browser natively would be awesome. Regarding a web server that should be pretty good as all building blocks are there.

Adam

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