Global USE flags

Flag Description Packages
static-libs 3
test 2

Category USE flags

x11-drivers

Flag Description Packages
wayland 4

Local USE flags

app-admin

mkosi

Flag Description
qemu enable usage with qemu

app-text

urlscan

Flag Description
doc

dev-cpp

glaze

Flag Description
examples

net-mail

cyrus-imapd

Flag Description
\
afs
backup Enable backup service support
calalarm Enable CalDAV alarm support
caps
clamav
http Enable http and http/2 support
kerberos
ldap
lmdb Enable support for using <pkg>dev-db/lmdb</pkg>
mysql
nntp
pam
perl
postgres
replication Enable replication support
server Enable building server binaries
sieve Enable sieve support
sqlite
ssl
tcpd
xapian Enable Xapian search engine support

www-client

google-chrome-unstable

Flag Description
qt5
qt6
selinux

x11-drivers

nvidia-drivers

Flag Description
X
abi_x86_32
abi_x86_64
persistenced Install the persistence daemon for keeping devices state when unused (e.g. for headless)
tools Install additional tools such as nvidia-settings