Peropesis is a small-scale, minimalist, command-line-based Linux operating system. It's an incomplete system, but it's constantly being improved. Also, it is a free operating system created from a free software.
Solus Alternatives
Solus is described as 'Operating System is a Linux distribution built from scratch, exclusively for desktop systems. There is no scope-creep associated with generic platforms, and the project aims to provide a modern and focused desktop-centric solution, that is designed to keep out of the way' and is a popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Solus for a variety of platforms, including Linux, Self-Hosted, BSD, Windows and Mac apps. The best Solus alternative is Linux Mint, which is both free and Open Source. Other great apps like Solus are Ubuntu, Debian, Fedora and Arch Linux.
Alternatives list
Visopsys (VISual OPerating SYStem) is an alternative operating system for PC-compatible computers, written “from scratch”, and developed primarily by a single hobbyist programmer since 1997.


+5
RebeccaBlackOS is a Debian-based live distribution which can be used to run Wayland desktop sessions. RebeccaBlackOS can run a number of popular open source desktop environments on top of a Wayland graphical session.


+4
Cost / License
- Free
- Proprietary
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux




+4
Karoshi provides a simple graphical interface that allows for quick installation, setup and maintenance of a network.



A libre open source Linux operating system. Focused on ease of use, simplicy, and flexibility to adapt and change.

Superb Mini Server (SMS) is a Slackware-based server distribution with web, DNS, DHCP, file, print and fax servers, iptables firewall, mail server with spam filter and anti-virus scanner, and BitTorrent station.



A new OS/2-based operating system from Arca Noae, codenamed Blue Lion, arrived today, May 15, 2017, after nearly two years in development.

ExectOS aims to be a stable and flexible, general purpose operating system written from scratch. It is designed to be modular, maintainable and compatible with existing software. It implements a brand new XT architecture and features own native application interface.
RetroBSD is a port of 2.11BSD Unix intended for embedded systems with fixed memory mapping. The current target is Microchip PIC32 microcontroller with 128 kbytes of RAM and 512 kbytes of Flash.
miniBSD is a project to develop a set of scripts that shrinks a running FreeBSD system to a small sized miniBSD distribution suited for small media like USB pens and CF cards.


































