etc/portage: add

etc/portage/env/enable-ccache.conf

@@ -0,0 +1,2 @@
+FEATURES="ccache"
+CCACHE_DIR="/var/cache/ccache"

etc/portage/env/rust-makeopts.conf

@@ -0,0 +1 @@
+MAKEOPTS="-j8"

etc/portage/make.conf

@@ -0,0 +1,41 @@
+# Compiler flags
+COMMON_FLAGS="-march=native -O3 -pipe"
+CFLAGS="${COMMON_FLAGS}"
+CXXFLAGS="${COMMON_FLAGS}"
+FCFLAGS="${COMMON_FLAGS}"
+FFLAGS="${COMMON_FLAGS}"
+RUSTFLAGS="${RUSTFLAGS} -C target-cpu=native"
+
+# Compile options
+MAKEOPTS="-j10 -l12"
+
+# WARNING: Changing your CHOST is not something that should be done lightly.
+# Please consult https://wiki.gentoo.org/wiki/Changing_the_CHOST_variable before changing.
+CHOST="x86_64-pc-linux-musl"
+
+# NOTE: This stage was built with the bindist USE flag enabled
+
+# This sets the language of build output to English.
+# Please keep this setting intact when reporting bugs.
+LC_MESSAGES=en_US.utf8
+
+# Logging
+PORTAGE_ELOG_CLASSES="log warn error"
+PORTAGE_LOGDIR="/var/log/portage"
+PORTAGE_LOGDIR_CLEAN="find \"\${PORTAGE_LOGDIR}\" -type f ! -name \"summary.log*\" -mtime +7 -delete"
+
+# Only accept free licenses
+ACCEPT_LICENSE="-* @FREE"
+
+# USE flags
+USE="${USE} -debug -telemetry -modemmanager -ext* -ppp -systemd -elogind -X -kde -gnome -gtk-doc -webengine hardened dist-kernel udev initramfs hostonly secureboot modules-sign apparmor acpi networkmanager dbus hwaccel bash-completion man pam pipewire pulseaudio vulkan wayland jpeg png svg eme-free"
+
+# Emerge flags
+EMERGE_DEFAULT_OPTS="${EMERGE_DEFAULT_OPTS} --with-bdeps y --quiet-build y"
+
+# Secureboot settings
+SECUREBOOT_SIGN_KEY="/var/lib/sbctl/keys/db/db.key"
+SECUREBOOT_SIGN_CERT="/var/lib/sbctl/keys/db/db.pem"
+MODULES_SIGN_KEY="${SECUREBOOT_SIGN_KEY}"
+MODULES_SIGN_CERT="${SECUREBOOT_SIGN_CERT}"
+MODULES_SIGN_HASH="sha512"