Experimental, under-development mainstream OSes

[bzt]

Hi,

I thought it would be nice to collect all OSes that well-established IT companies are working on. These are the ones that one day supposed to replace the mainstream OSes we're using now. My list is most likely not complete, and I'm curious what other OSes there might be.

KasperskyOS
Not a general purpose OS, the main goal is security. Mostly targets industry: routers, IoT, automation. Developed for more than 15 years. Already working, there's a stable release.

FacebookOS
Not much known as of now, main goal is user experience, AR, VR things alike. I'm absolutely not expecting to see this on servers. Maybe 1 year of development done so far. Release date not known.

Fuchsia
A general purpose OS developed by Google. Similar to Android, mostly user experience related, but it's romured to be more than that. About 3-4 years of development done. Estimated time of first release 2023.

HarmonyOS
Huawei's announced to be Android-killer. No official website, and there are lots on controversial announcements about it (supposed to be micro-kernel but also Linux-based?).
There's a real repository jungle around this, and nothing specific: there's also Huawei_LiteOS_Kernel, which links to LiteOS which hasn't been updated their kernel for over a year. Doesn't look like being actively developed.
I bet at the moment this is nothing serious, more of a marketing bullsh*t than a real effort. One year of development done maybe? Hard to tell as it doesn't have an official code base. Release date not known.

Singularity
An experimental research OS from Microsoft. Most interesting thing, it's without memory protection, processes are software-isolated only. I don't know for how long it has been developed on (I think 7 years), but there's already a stable release. Is this still active?

Chrome-OS
I believe this is already sold, so I'm not sure how experimental it is. But fits the list anyway. Interesting thing about it that it's basic user interface is a webbrowser.

Are there any more mainstream-wannabe OSes? (Please only list OSes from well-established IT companies. This topic for once is not about hobby OSes.) Updates from reliable source on these are also welcome.

Cheers,
bzt

[PeterX]

Good idea!

(The OS is named Fuchsia, not Fuchia.)

I don't know if Google Chrome OS counts? It's Linux-based, but otherwise it meets the requirements.
https://www.google.com/intl/en_us/chromebook/chrome-os/

EDIT: It's not under development, or is it.

[bzt]

(The OS is named Fuchsia, not Fuchia.)

Opps, missing an "s", thanks for letting me know, fixed.

I don't know if Google Chrome OS counts?

I'm not sure how much it fits the "experimental" criteria, but I'll add it anyway, because it has a unique concept of user interface. Thanks!

Cheers,
bzt

[PeterX]

On Slashdot I found 2 (actually not so new) news:

Huawei makeing kind of silly claims:
https://mobile.slashdot.org/story/19/08 ... me-devices

Huawei's seriousness questionable:
https://developers.slashdot.org/story/1 ... f-finished