Fastfetch

Fastfetch is a neofetch-like tool for fetching system information and displaying them in a pretty way. It is written in pure c, with performance and customizability in mind. Currently Linux, Android, FreeBSD, MacOS and Windows are supported.

Customization

With customization and speed being two competing goals, this project actually builds two executables.
The main one being fastfetch, which can be very greatly configured via flags. These flags can be made persistent in ~/.config/fastfetch/config.conf. To view the available options run fastfetch --help.
The second executable being built is called flashfetch, which is configured at compile time to eliminate any possible overhead. Configuration of it can be very easily done in src/flashfetch.c.
At the moment the performance difference is measurable, but too small to be human recognizable. But the leap will get bigger with more and more options coming, and on slow machines this might actually make a difference.

There are some premade config files in presets, including the ones used for the screenshots above. You can load them using --load-config <filename>. They may also serve as a good example for format arguments.

Dependencies

Fastfetch dynamically loads needed libraries if they are available. On Linux, its only hard dependencies are libc (any implementation of the c standard library), libdl and libpthread (if built with multithreading support). They are all shipped with glibc, which is already installed on most linux distributions.

The following libraries are used if present at runtime:

Linux and FreeBSD

libpci: GPU output.
libvulkan: Vulkan module & fallback for GPU output.
libxcb-randr, libXrandr, libxcb, libX11: At least one of them sould be present in X11 sessions for better resolution detection and faster WM detection. The *randr ones provide multi monitor support The libxcb* ones usually have better performance.
libwayland-client: Better resolution performance and output in wayland sessions. Supports different refresh rates per monitor.
libGIO: Needed for values that are only stored GSettings.
libDConf: Needed for values that are only stored in DConf + Fallback for GSettings.
libmagickcore (ImageMagick): Images in terminal using sixel or kitty graphics protocol.
libchafa: Image output as ascii art.
libZ: Faster image output when using kitty graphics protocol.
libDBus: Needed for detecting current media player and song.
libEGL, libGLX, libOSMesa: At least one of them is needed by the OpenGL module for gl context creation.
libOpenCL: OpenCL module
libXFConf: Needed for XFWM theme and XFCE Terminal font.
libsqlite3: Needed for pkg & rpm package count.
librpm: Slower fallback for rpm package count. Needed on openSUSE.
libcJSON: Needed for Windows Terminal font ( WSL ).

macOS

MediaRemote: Need for Media detection. It's a private framework provided by newer macOS system.
libvulkan: Vulkan module. To get it actually working, both loader (vulkan-loader) and driver (molten-vk) need to be installed.

Windows

libcJSON: Used for Windows Terminal font detection.
libvulkan: Vulkan module. Usually has been provided by GPU drivers.
libOpenCL: OpenCL module

Android

freetype: Used for Termux font detection.
libvulkan: Vulkan module, also used for GPU detection. Usually has been provided by Android system.

Support status

All categories not listed here should work without needing a specific implementation.

Available Modules

Title, Separator, OS, Host, Bios, Board, Kernel, Uptime, Processes, Packages, Shell, Resolution, DE, WM, WMTheme, Theme, Icons, Font, Cursor, Terminal, Terminal Font, CPU, CPUUsage, GPU, Memory, Swap, Disk, Battery, Power Adapter, Player, Media, Vulkan, OpenGL, OpenCL, LocalIP, PublicIP, DateTime, Date, Time, Locale, Colors, Break, Custom

Logos

AlmaLinux, Alpine, Android, Arch, Arco, Artix, Bedrock, CachyOS, CentOS, Crystal, Debian, Devuan, Deepin, Endeavour, Fedora, FreeBSD, Garuda, Gentoo, KDE Neon, KISS, Kubuntu, LangitKetujuh, Linux, MacOS, Manjaro, Mint, MSYS2, NixOS, Nobara, OpenSUSE, OpenSUSE Tumbleweed, OpenSUSE LEAP, Parabola, Pop!_OS, RebornOS, RedstarOS, Rocky, Rosa, Slackware, Ubuntu, Void, Windows 11, Windows 8, Windows, Zorin

Most of the logos have a small variant. Access it by appending _small to the logo name.
Some logos have an old variant. Access it by appending _old to the logo name.
To disable the logo, use --logo none.
Get a list of all available logos with fastfetch --print-logos.
Printing images as logo is supported using Sixel / Kitty graphics protocol or chafas image to text conversion.

Package managers

Pacman, dpkg, rpm, emerge, xbps, nix, Flatpak, Snap, apk, pkg, brew, MacPorts, scoop, Chocolatey

WM themes

KWin, Mutter, Muffin, Marco, XFWM, Openbox (LXDE, LXQT & without DE), Quartz Compositor (macOS), DWM (Windows)

DE versions

KDE Plasma, Gnome, Cinnamon, Mate, XFCE4, LXQt

Terminal fonts

Konsole, Gnome Terminal, Tilix, XFCE4 Terminal, Alacritty, LXTerminal, iTerm2, Apple Terminal, TTY, Windows Terminal, Termux, mintty

Building

fastfetch uses cmake and pkg-config for building. The simplest steps to build the fastfetch and flashfetch binaries are:

mkdir -p build
cd build
cmake ..
cmake --build . --target fastfetch --target flashfetch

If pkg-config fails to find the headers for a library listed in dependencies, fastfetch will simply build without support for that specific feature. This means, it won't look for it at runtime and just act like it isn't available.

Building on Windows

Currently GCC or clang is required (MSVC is not supported). MSYS2 with CLANG64 sub system is suggested (and tested) to build fastfetch.

Packaging

Repositories

Manual

DEB / RPM package: cmake --build . --target package
Install directly: cmake --install . --prefix /usr/local

FAQ

Q: Why do you need a very performant version of neofetch?

I like putting neofetch in my ~/.bashrc to have a system overwiew whenever i use the terminal, but the slow speed annoyed me, so i created this. Also neofetch didn't output everything correctly (e.g Font is displayed as "[Plasma], Noto Sans, 10 [GTK2/3]") and writing my own tool gave me the possibility to fine tune it to run perfectly on at least my configuration.

Q: It does not display [*] correctly for me, what can i do?

This is most likely because your system is not implemented (yet). At the moment i am focusing more on making the core app better, than adding more configurations. Feel free to open a pull request if you want to add support for your configuration

M4RC0Sx/fastfetch