--- /dev/null
+# CPU flags
+#
+# mmx, mmxext:
+# sse, sse2, sse3, ssse3, sse4_1, sse4_2: Streaming SIMD Extensions
+# popcnt: count number of bits set to 1 (useful in encryption)
+CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3 sse4_1 sse4_2 popcnt"
+
+# LTO flags
+#
+# Source: https://wiki.gentoo.org/wiki/LTO#Enabling_LTO_System-wide
+WARNING_FLAGS="-Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing"
+LTO_FLAGS="-flto ${WARNING_FLAGS}"
+USE="${USE} lto"
+
+# Common compilation flags
+#
+# -pipe: use pipes instead of temporary files to pass .s files to the assembler,
+# avoiding unnecessary I/O
+# -O2: O2 optimizations are safe enough in the majority of times
+COMMON_FLAGS="-march=x86-64-v3 -O2 -pipe ${LTO_FLAGS}"
+RUSTFLAGS="-C target-cpu=x86-64"
+
+CFLAGS="${COMMON_FLAGS}"
+CXXFLAGS="${COMMON_FLAGS}"
+FCFLAGS="${COMMON_FLAGS}"
+FFLAGS="${COMMON_FLAGS}"
+
+# Distro
+#
+# Enable: distribution kernel, prebuilt binaries
+USE="${USE} dist-kernel bindist"
+
+# Security
+#
+# Enable: process capabilities, file capabilities, access control lists
+# Disable: suid, single-use key
+USE="${USE} caps filecaps acl -suid -skey"
+
+# Desktop
+#
+# Enable: screencast support, fontconfig
+USE="${USE} screencast fontconfig"
+
+# Xorg
+#
+# Disable: X and its extensions
+# NOTES: enable them per-package
+USE="${USE} -X -xcomposite -xinerama -xscreensaver -xv"
+
+# GTK & QT
+#
+# Disable: gtk documentation and gtk2, gtk3, qt5, qt6 toolkits
+# NOTES: enable them per-package
+USE="${USE} -gtk2 -gtk3 -gtk-doc"
+USE="${USE} -qt5 -qt6"
+
+
+# GNOME & KDE
+#
+# Disable: disable gnome and kde services/features which are not strictly necessary to run a standalone desktop
+USE="${USE} -gnome -eds -gnome-online-accounts -sysprof"
+USE="${USE} -kde -plasma -kwallet -kaccounts"
+
+# Audio
+#
+# Enable: jack, pipewire
+USE="${USE} jack pipewire"
+
+# Graphics
+#
+# Enable: vaapi, vulkan
+USE="${USE} vaapi vulkan"
+
+# Misc
+#
+# Enable: fftw library for calculating fast fourier transformations
+USE="${USE} fftw"
+
+# Video cards
+#
+# Enable: framebuffer device (basic), amd related video card support
+VIDEO_CARDS="fbdev amdgpu radeon radeonsi zink"
+
+# Input devices
+#
+# Enable: evdev, libinput (manages most common inputs such as mouse, keyboard, touchpad etc)
+INPUT_DEVICES="evdev libinput"
+
+# Localization
+#
+# Enable: english, greek
+L10N="en en_GB el"
+
+# Licensing
+#
+# Enable: nothing except free and binary redistributables
+ACCEPT_LICENSE="-* @FREE @BINARY-REDISTRIBUTABLE"