diff --git a/keyboards/handwired/symmetric70_proto/post_rules.mk b/keyboards/handwired/symmetric70_proto/local_features.mk
similarity index 100%
rename from keyboards/handwired/symmetric70_proto/post_rules.mk
rename to keyboards/handwired/symmetric70_proto/local_features.mk
diff --git a/keyboards/handwired/symmetric70_proto/promicro/fast/rules.mk b/keyboards/handwired/symmetric70_proto/promicro/fast/rules.mk
index fbc1c3bb388..de489fcabda 100644
--- a/keyboards/handwired/symmetric70_proto/promicro/fast/rules.mk
+++ b/keyboards/handwired/symmetric70_proto/promicro/fast/rules.mk
@@ -1,3 +1,6 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_fast/matrix.c
+
+KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
+include $(KEYBOARD_LOCAL_FEATURES_MK)
diff --git a/keyboards/handwired/symmetric70_proto/promicro/normal/rules.mk b/keyboards/handwired/symmetric70_proto/promicro/normal/rules.mk
index 73192f4ff76..0b2b707ef82 100644
--- a/keyboards/handwired/symmetric70_proto/promicro/normal/rules.mk
+++ b/keyboards/handwired/symmetric70_proto/promicro/normal/rules.mk
@@ -1,3 +1,6 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_debug/matrix.c
+
+KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
+include $(KEYBOARD_LOCAL_FEATURES_MK)
diff --git a/keyboards/handwired/symmetric70_proto/promicro/readme.md b/keyboards/handwired/symmetric70_proto/promicro/readme.md
index 83703f82ba0..c74063b9983 100644
--- a/keyboards/handwired/symmetric70_proto/promicro/readme.md
+++ b/keyboards/handwired/symmetric70_proto/promicro/readme.md
@@ -19,7 +19,7 @@ Flashing example for this keyboard:
     make handwired/symmetric70_proto/promicro/normal:default:flash
     make handwired/symmetric70_proto/promicro/fast:default:flash
 
-Testing options: (see more options: [post_rules.mk](../post_rules.mk), [matrix_debug](../matrix_debug/readme.md) and [matrix_fast](../matrix_fast/readme.md) )
+Testing options: (see more options: [local_features.mk](../local_features.mk), [matrix_debug](../matrix_debug/readme.md) and [matrix_fast](../matrix_fast/readme.md) )
 
     make MTEST=mdelay0 handwired/symmetric70_proto/promicro/normal:default:flash
     make MTEST=mdelay0 handwired/symmetric70_proto/promicro/fast:default:flash
diff --git a/keyboards/handwired/symmetric70_proto/proton_c/fast/rules.mk b/keyboards/handwired/symmetric70_proto/proton_c/fast/rules.mk
index fbc1c3bb388..de489fcabda 100644
--- a/keyboards/handwired/symmetric70_proto/proton_c/fast/rules.mk
+++ b/keyboards/handwired/symmetric70_proto/proton_c/fast/rules.mk
@@ -1,3 +1,6 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_fast/matrix.c
+
+KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
+include $(KEYBOARD_LOCAL_FEATURES_MK)
diff --git a/keyboards/handwired/symmetric70_proto/proton_c/normal/rules.mk b/keyboards/handwired/symmetric70_proto/proton_c/normal/rules.mk
index 73192f4ff76..0b2b707ef82 100644
--- a/keyboards/handwired/symmetric70_proto/proton_c/normal/rules.mk
+++ b/keyboards/handwired/symmetric70_proto/proton_c/normal/rules.mk
@@ -1,3 +1,6 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_debug/matrix.c
+
+KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
+include $(KEYBOARD_LOCAL_FEATURES_MK)
diff --git a/keyboards/handwired/symmetric70_proto/proton_c/readme.md b/keyboards/handwired/symmetric70_proto/proton_c/readme.md
index 7457b5f3ee0..fc10a2e634d 100644
--- a/keyboards/handwired/symmetric70_proto/proton_c/readme.md
+++ b/keyboards/handwired/symmetric70_proto/proton_c/readme.md
@@ -18,7 +18,7 @@ Flashing example for this keyboard:
     make handwired/symmetric70_proto/proton_c/normal:default:flash
     make handwired/symmetric70_proto/proton_c/fast:default:flash
 
-Testing options: (see more options: [post_rules.mk](../post_rules.mk), [matrix_debug](../matrix_debug/readme.md) and [matrix_fast](../matrix_fast/readme.md) )
+Testing options: (see more options: [local_features.mk](../local_features.mk), [matrix_debug](../matrix_debug/readme.md) and [matrix_fast](../matrix_fast/readme.md) )
 
     make MTEST=mdelay0 handwired/symmetric70_proto/proton_c/normal:default:flash
     make MTEST=mdelay0 handwired/symmetric70_proto/proton_c/fast:default:flash