Lumina is a lightweight, BSD licensed, standards-compliant desktop environment based upon Qt and Fluxbox. It is being developed on PC-BSD, and is being packaged for distribution on the PC-BSD package repository as well.
Openbox Alternatives
Openbox is described as 'Highly configurable, next generation window manager with extensive standards support' and is a popular Window Manager in the os & utilities category. There are more than 50 alternatives to Openbox for a variety of platforms, including Linux, Wayland, BSD, Mac and Windows apps. The best Openbox alternative is Hyprland, which is both free and Open Source. Other great apps like Openbox are niri, i3, Sway and awesome.
Alternatives list
The Fast Light Window Manager is a small stacking FLTK-based window manager written in C++ and available for redistribution under the terms of the GNU General Public Licence.
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- C
- 50 Rift alternatives
Rift is a tiling window manager for macOS that focuses on performance and usability.
R 
51 MouseTiler alternativesThe fastest, simplest tiler for KDE Plasma 6+ that gives you full freedom at your fingertip. No need to remember dozens of keyboard shortcuts or be limited by a fixed tile layout.
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V
Linux auto tiling manager with hot corner support for Openbox, Fluxbox, IceWM, Xfwm, KWin, Marco, Muffin, Mutter and other EWMH compliant window managers using the X11 window system.
Cage is a kiosk compositor for Wayland. A kiosk is a window manager (in the X11 world) or compositor (in the Wayland world) that is designed for a user experience wherein user interaction and activities outside the scope of the running application are prevented.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Linux
- Wayland
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