Note that the 64-bit version is not open source.

KolibriOS (https://kolibrios.org/en) is an active fork of the open source 32-bit version.

Tiberium 2 hours ago | parent | next [-]

To be honest, while KolibriOS is open-source, I wouldn't call it "active" that much. MenuetOS has progressed much further than KolibriOS over the years in both performance (it has SMP support!) and being 64-bit.

You can check the commit activity: https://git.kolibrios.org/KolibriOS/kolibrios/commits/branch... - last commit on the first page is already 10 months ago.

And compare it to "News" on the MenuetOS page: - 22.01.2026 M64 1.58.10 released - Improvements, bugfixes, additions

- 26.08.2024 M64 1.53.60 released - MPlayer included to disk image

- 24.07.2024 M64 1.52.00 released - Partial Linux layer (X-Window/Posix/Elf)

- 12.07.2024 M64 1.51.50 released - New graphics designs by Yamen Nasr

- 08.05.2024 M64 1.50.80 released - Fasm-G, many 32 bit apps & sources

	▲	b00ty4breakfast an hour ago \| parent [-]
		last commit was a week ago https://git.kolibrios.org/KolibriOS/kolibrios/commit/dd9a7b9...

▲

0x1ch an hour ago | parent | prev [-]

I wonder why that is. I imagine there's a number between 0 and 1 that reflects how many people have an interest in stealing and commercializing this project.

	▲	genewitch an hour ago \| parent [-]
		it's okay to want to be paid for effort. if one doesn't want to pay, one can use 32 bit (with all that entails, which, really, isn't much on the sort of machine you'd want to boot from floppy); if one wants 64 bit, one can pay? i don't see a problem.