Global USE flags

Flag Description Packages
cuda 2

Category USE flags

app-misc

Flag Description Packages
claude-code Pull in <pkg>dev-util/claude-code</pkg> so the bundled Claude Code integration can spawn the CLI 2
cowork Pull in <pkg>app-emulation/qemu</pkg> and <pkg>app-emulation/virtiofsd</pkg> so Claude Desktop's Cowork feature can boot its sandbox microVM 3
wayland Add residual Computer Use fallbacks for Wayland sessions without a bundled bridge: <pkg>x11-misc/ydotool</pkg> for exotic compositors (requires ydotoold daemon running) and <pkg>media-gfx/imagemagick</pkg> for KDE below Plasma 6.6 2

Local USE flags

dev-util

claude-code

Flag Description
cpu_flags_x86_avx
cpu_flags_x86_avx2

media-gfx

blender-bin

Flag Description
hip
oneapi Add support for OneAPI

media-sound

ponymix

Flag Description
bash-completion

sci-misc

llama-cpp

Flag Description
blis Build a BLIS backend
examples Build the bundled example programs
flexiblas Build a FlexiBLAS backend
openblas Build an OpenBLAS backend
opencl Build an OpenCL backend, so far only works on Adreno and Intel GPUs
openmp
openssl Use openssl to support HTTPS
rocm Build a HIP (ROCm) backend
vulkan
wmma Use rocWMMA to enhance flash attention performance

sys-apps

firejail

Flag Description
X Enable X11 sandboxing
apparmor Enable support for custom AppArmor profiles
chroot Enable chrooting to custom directory
contrib Install contrib scripts
dbusproxy Enable DBus proxying to filter access in supporting profiles
file-transfer Enable file transfers between sandboxes and the host system
globalcfg Enable global config file
network Enable networking features
private-home Enable private home feature
selinux
test
userns Enable attaching a new user namespace to a sandbox (--noroot option)

x11-misc

alock

Flag Description
debug
imlib
pam
xbacklight Enable xbacklight support