diff --git a/Makefile b/Makefile
index 8cb39ed..a36628c 100644
--- a/Makefile
+++ b/Makefile
@@ -467,6 +467,13 @@
 # Disable wiki printing by default. It is only useful if you have wiki access.
 CONFIG_PRINT_WIKI ?= no
 
+# Enable all features if CONFIG_EVERYTHING=yes is given
+ifeq ($(CONFIG_EVERYTHING), yes)
+$(foreach var, $(filter CONFIG_%, $(.VARIABLES)),\
+	$(if $(filter no, $($(var))),\
+		$(eval $(var)=yes)))
+endif
+
 # Bitbanging SPI infrastructure, default off unless needed.
 ifeq ($(CONFIG_RAYER_SPI), yes)
 override CONFIG_BITBANG_SPI = yes