Calculate Linux is based on Gentoo that is well known for its stability and great performance on a broad range of hardware: from Pentium Pro to modern CPUs.
SerenityOS Alternatives
SerenityOS is described as 'Serenity is a graphical 32-bit Unix-like operating system with 90s aesthetics and built for x86 systems' and is a operating system in the system & hardware category. There are more than 100 alternatives to SerenityOS for a variety of platforms, including Linux, Self-Hosted, BSD, Mac and Windows apps. The best SerenityOS alternative is Tails, which is both free and Open Source. Other great apps like SerenityOS are Zorin OS, Lubuntu, Rocky Linux and GhostBSD.
Alternatives list
Lunar Linux is a source based Linux distribution. It is built entirely by compiling source code, using custom optimizations.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux
Founded in 2014 by Oliver Pinter and Shawn Webb, HardenedBSD is a security-enhanced fork of FreeBSD. The HardenedBSD Project is implementing many exploit mitigation and security technologies on top of FreeBSD.
Hanthana is a Linux based operating system and a Fedora remix suitable for desktop and laptop users. Hanthana comes to you in the form of a Live CD for regular PC (i686 architecture) systems.



- 151 Superb Mini Server alternatives
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.



Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux



BLAG is a single-cd distro with everything desktop users "expect" from a desktop, plus a collection of nice server apps.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux



The Friend Unifying Platform is a powerful open source framework that will allow developers to decouple their applications from technology silos. It will empower developers to swiftly deploy on and integrate with Ethereum and other decentralised technologies in a new blockchain...

Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux


Frugalware Linux is an independently developed general purpose desktop Linux distribution designed for intermediate users. It follows simple Slackware -like design concepts and includes the .

Mabox Linux is based on Manjaro, featuring a customized Openbox window manager preconfigured to be ready to use.
Cost / License
- Free
- Open Source
Application types
Platforms
- Linux
- Manjaro Linux


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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.





































