diff --git a/Makefile b/Makefile
index ca13542..1b9bc5d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
-CFLAGS = -Wall -Wextra -Werror -Wl,-z,now
-CFLAGS_RELEASE = ${CFLAGS} -O2 -s -D_FORTIFY_SOURCE=2
+CFLAGS = -flto -Wall -Wextra -Werror -Wl,-z,now
+CFLAGS_RELEASE = ${CFLAGS} -O3 -s -D_FORTIFY_SOURCE=2
 CFLAGS_DEBUG = ${CFLAGS} -O0 -g -fsanitize=undefined
 CFLAGS_STATIC = ${CFLAGS_RELEASE} -static-pie
 LIBS = -lcrypt
diff --git a/metadata/layout.conf b/metadata/layout.conf
new file mode 100644
index 0000000..d43e61c
--- /dev/null
+++ b/metadata/layout.conf
@@ -0,0 +1 @@
+masters = gentoo