Global USE flags

Flag	Description	Packages
cuda		2
examples	Build the bundled example programs	2

Category USE flags

app-misc

Flag	Description	Packages
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	2

Local USE flags

app-misc

claude-desktop-extra

Flag	Description
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

claude-desktop-official

Flag	Description
claude-code	Pull in <pkg>dev-util/claude-code</pkg> so the bundled Claude Code integration can spawn the CLI

greenboost

Flag	Description
abi_x86_32
bpf	Build the optional eBPF tracer for tier migration events (needs a kernel with CONFIG_DEBUG_INFO_BTF)

dev-util

claude-code

Flag	Description
cpu_flags_x86_avx
cpu_flags_x86_avx2

nvidia-cuda-toolkit

Flag	Description
clang	Depend on <pkg>llvm-core/clang</pkg> as host compiler
cuda-minor-compat	Enforce the minimum compatible <pkg>x11-drivers/nvidia-drivers</pkg> version, as described in: https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html#cuda-driver
debugger	Install the CUDA debugger
nsight	Install profiling and optimizing tools (nsight-compute, nsight-systems)
profiler	Install the NVIDIA CUDA profiler (nvprof) and the related libraries
rdma	Enable infiniband support via <pkg>sys-cluster/rdma-core</pkg>
sanitizer	Install compute-sanitizer tool

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
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

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