FunOS is an Ubuntu-based Linux distribution which features the JWM graphical user interface. The project is intended to be more lightweight than official Ubuntu community editions while providing the same application compatibility and hardware support.
To compare the software in this project to the software available in other distributions, please see our Compare Packages page.
Notes: In case where multiple versions of a package are shipped with a distribution, only the default version appears in the table. For indication about the GNOME version, please check the "nautilus" and "gnome-shell" packages. The Apache web server is listed as "httpd" and the Linux kernel is listed as "linux". The KDE desktop is represented by the "plasma-desktop" package and the Xfce desktop by the "xfdesktop" package.
Colour scheme:green text = latest stable version, red text = development or beta version. The function determining beta versions is not 100% reliable due to a wide variety of versioning schemes.
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What are your thoughts on FunOS? Please include a few pros and a few cons, along with your overall impression of the operating system.
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Version: 26.04 Rating: 10 Date: 2026-10-19 Country: Japan Votes: 4
Funos is the OS that finally put an end to my "distro-hopping." It features a custom-configured version of the JWM (Joe's Window Manager) that is exceptionally user-friendly. Because it uses JWM, it is very light on memory, making it an excellent choice for older computers. Furthermore, since it is based on Ubuntu, finding answers to any questions online is quick and easy. I believe it is one of the best options for anyone seeking a snappy, responsive Linux OS.
I decided to write this review because I felt its ranking on DistroWatch—hovering around 90th place—was unfairly low; I’d like to see it rank somewhere closer to the top 50.
I currently use both Arch and Debian with the Fluxbox window manager, and while both serve me well, I have been searching for a distribution that sits somewhere between them in terms of release frequency. After seeing several positive mentions of FunOS, I decided to test it out by installing it on a spare partition.
The installation process was smooth and intuitive, taking only a few minutes; it is clear the developer understands the needs of Linux users very well. The OS itself performs excellently, with audio and video working perfectly out of the box. Despite being based on Ubuntu LTS, it is lightweight and comes without Snap installed by default, exceeding my expectations.
Currently, I believe the project would benefit from a dedicated user forum where the community can share experiences, ask questions, provide feedback, and report bugs. Additionally, it would be fantastic if a future ISO release were offered with the Fluxbox window manager pre-installed.
Finally, thank you for your time and dedication - I truly appreciate it.
I have no need for installing antiX on older and low spec machines now.
FunOS used ~263 MB idle RAM in my tests (htop in uxterm), with the added benefit of flatpak support (not enabled by default), Ubuntu repositories & HWE kernel, flatpak support and systemd integration.
Adding flatpak does increase idle memory usage to 280-330MB which is an acceptable tradeoff considering the availability of up-to-date and sandboxed apps.
Things it can improve on:
- Save desktop resolution on user change.
- Set up Flathub by default, preferably the FLOSS subset.
- Alternatively, let the user decide on first run and choose between default, Flathub FLOSS and Flathub unfiltered.
- Option for automatic upgrades to system and software.
- Option for managing apps using an app store like Bazaar.
- Simpler and easier way to do major upgrades. Currently, it requires manually running a script from Github to apply FunOS customizations - this should be handled automatically.
- Theme the JWM UI to look more modern.
- Community forum/channel to garnish support and potentially get other contributors. Right now, there's only the website comments and Sourceforge forums. A Fluxer Community would be ideal as it's more usable than Matrix in my experience.
- There's also not much information about the project maintainer(s) and bus factor. Based on the early comment replies, it the (solo?) maintainer is Bustami Arifin presumably from Indonesia.
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