diff --git a/variants/nibble_screen_connect/platformio.ini b/variants/nibble_screen_connect/platformio.ini
index a496a2fe..20f7dc24 100644
--- a/variants/nibble_screen_connect/platformio.ini
+++ b/variants/nibble_screen_connect/platformio.ini
@@ -18,7 +18,7 @@ build_flags =
   -D HAS_NEOPIXEL
   -D NEOPIXEL_COUNT=1
   -D NEOPIXEL_DATA=21
-  -D NEOPIXEL_TYPE=(NEO_GRB+NEO_KHZ800)
+  -D NEOPIXEL_TYPE=NEO_GRB+NEO_KHZ800
   -D SX126X_DIO2_AS_RF_SWITCH=true
   -D SX126X_DIO3_TCXO_VOLTAGE=1.8
   -D SX126X_CURRENT_LIMIT=140
@@ -159,8 +159,8 @@ lib_deps =
   ${nibble_screen_connect_base.lib_deps}
   densaugeo/base64 @ ~1.4.0
 
-
-[env:nibble_screen_connect_kiss_modem]
-extends = nibble_screen_connect_base
-build_src_filter = ${nibble_screen_connect_base.build_src_filter}
-  +<../examples/kiss_modem/>
+
+[env:nibble_screen_connect_kiss_modem]
+extends = nibble_screen_connect_base
+build_src_filter = ${nibble_screen_connect_base.build_src_filter}
+  +<../examples/kiss_modem/>
diff --git a/variants/thinknode_m2/platformio.ini b/variants/thinknode_m2/platformio.ini
index 99015501..aae83324 100644
--- a/variants/thinknode_m2/platformio.ini
+++ b/variants/thinknode_m2/platformio.ini
@@ -34,7 +34,6 @@ build_flags = ${esp32_base.build_flags}
 build_src_filter = ${esp32_base.build_src_filter}
   +<helpers/ui/SH1106Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
-  +<helpers/ui/buzzer.cpp>
   +<../variants/thinknode_m2>
 lib_deps = ${esp32_base.lib_deps}
   adafruit/Adafruit SH110X @ ~2.1.13
@@ -144,6 +143,7 @@ build_flags =
 build_src_filter = ${ThinkNode_M2.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
+  +<helpers/ui/buzzer.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -162,6 +162,7 @@ build_flags =
 build_src_filter = ${ThinkNode_M2.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
+  +<helpers/ui/buzzer.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -183,6 +184,7 @@ build_flags =
 build_src_filter = ${ThinkNode_M2.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
+  +<helpers/ui/buzzer.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -197,18 +199,20 @@ build_flags =
   -I examples/companion_radio/ui-new
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
-  -D SERIAL_TX=D6
-  -D SERIAL_RX=D7
+  -D SERIAL_TX=43
+  -D SERIAL_RX=44
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
 build_src_filter = ${ThinkNode_M2.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
+  +<helpers/ui/buzzer.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
   ${ThinkNode_M2.lib_deps}
   densaugeo/base64 @ ~1.4.0
+  end2endzone/NonBlockingRTTTL@^1.3.0
 
 [env:ThinkNode_M2_kiss_modem]
 extends = ThinkNode_M2