diff --git a/MQTT_IMPLEMENTATION.md b/MQTT_IMPLEMENTATION.md
index a5b8a053..1daa9bab 100644
--- a/MQTT_IMPLEMENTATION.md
+++ b/MQTT_IMPLEMENTATION.md
@@ -192,6 +192,10 @@ pio run -e heltec_tracker_v2_room_server_observer_mqtt
 # Station G2
 pio run -e Station_G2_repeater_observer_mqtt
 
+# Station G3 (ESP32)
+pio run -e Station_G3_ESP32_repeater_observer_mqtt
+pio run -e Station_G3_ESP32_room_server_observer_mqtt
+
 # LilyGo T-LoRa V2.1-1.6 (TTGO LoRa32 V1.0)
 pio run -e LilyGo_TLora_V2_1_1_6_repeater_observer_mqtt
 pio run -e LilyGo_TLora_V2_1_1_6_room_server_observer_mqtt
@@ -213,6 +217,8 @@ Some MQTT observer builds use a non-default partition table to accommodate the l
 | `LilyGo_TLora_V2_1_1_6_room_server_observer_mqtt` | `min_spiffs.csv` | 4 MB | 1.875 MB | same |
 | `Station_G2_repeater_observer_mqtt` | `default_16MB.csv` | 16 MB | 6.25 MB | 16 MB flash board |
 | `Station_G2_room_server_observer_mqtt` | `default_16MB.csv` | 16 MB | 6.25 MB | 16 MB flash board |
+| `Station_G3_ESP32_repeater_observer_mqtt` | `default_16MB.csv` | 16 MB | 6.25 MB | 16 MB flash board |
+| `Station_G3_ESP32_room_server_observer_mqtt` | `default_16MB.csv` | 16 MB | 6.25 MB | 16 MB flash board |
 | `LilyGo_TBeam_1W_repeater_observer_mqtt` | `default_16MB.csv` | 16 MB | 6.25 MB | Set in `boards/t_beam_1w.json`; required vs implicit `default.csv` |
 | `LilyGo_TBeam_1W_room_server_observer_mqtt` | `default_16MB.csv` | 16 MB | 6.25 MB | same |
 
diff --git a/variants/station_g3_esp32/platformio.ini b/variants/station_g3_esp32/platformio.ini
index e4a66a18..d50e05c0 100644
--- a/variants/station_g3_esp32/platformio.ini
+++ b/variants/station_g3_esp32/platformio.ini
@@ -159,3 +159,92 @@ lib_deps =
 extends = Station_G3_ESP32
 build_src_filter = ${Station_G3_ESP32.build_src_filter}
   +<../examples/kiss_modem/>
+
+[env:Station_G3_ESP32_repeater_observer_mqtt]
+extends = Station_G3_ESP32
+board_build.partitions = default_16MB.csv ; standard 16MB partition table
+extra_scripts =
+  ${esp32_base.extra_scripts}
+  pre:scripts/generate_cert_bundle.py
+board_ssl_cert_source = adafruit-full
+board_build.embed_files = src/certs/x509_crt_bundle.bin
+build_flags =
+  ${Station_G3_ESP32.build_flags}
+  -D ADVERT_NAME='"MQTT Observer"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=50
+  -D WITH_MQTT_BRIDGE=1
+  -D MAX_MQTT_BROKERS=3
+  -D MQTT_MAX_PACKET_SIZE=1024
+  -D MQTT_DEBUG=1
+#  -D MESH_PACKET_LOGGING=1
+#  -D MESH_DEBUG=1
+  -D CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
+  -D ESP32_CPU_FREQ=160
+  -D WITH_SNMP=1
+#  -D WIFI_SSID='"ssid"'
+#  -D WIFI_PWD='"password"'
+#  -D MQTT_SERVER='"your-mqtt-broker.com"'
+#  -D MQTT_PORT=1883
+#  -D MQTT_USERNAME='"your-username"'
+#  -D MQTT_PASSWORD='"your-password"'
+build_src_filter = ${Station_G3_ESP32.build_src_filter}
+  +<helpers/bridges/MQTTBridge.cpp>
+  +<helpers/MQTTMessageBuilder.cpp>
+  +<helpers/JWTHelper.cpp>
+  +<helpers/SNMPAgent.cpp>
+  +<helpers/ui/SH1106Display.cpp>
+  +<../examples/simple_repeater>
+lib_deps =
+  ${Station_G3_ESP32.lib_deps}
+  ${esp32_ota.lib_deps}
+  elims/PsychicMqttClient@^0.2.4
+  bblanchon/ArduinoJson @ 7.4.3
+  arduino-libraries/NTPClient
+  JChristensen/Timezone
+  paulstoffregen/Time@1.6.1
+  0neblock/SNMP_Agent
+
+[env:Station_G3_ESP32_room_server_observer_mqtt]
+extends = Station_G3_ESP32
+board_build.partitions = default_16MB.csv ; standard 16MB partition table
+extra_scripts =
+  ${esp32_base.extra_scripts}
+  pre:scripts/generate_cert_bundle.py
+board_ssl_cert_source = adafruit-full
+board_build.embed_files = src/certs/x509_crt_bundle.bin
+build_flags =
+  ${Station_G3_ESP32.build_flags}
+  -D ADVERT_NAME='"Station G3 ESP32 Room Observer"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D ROOM_PASSWORD='"hello"'
+  -D WITH_MQTT_BRIDGE=1
+  -D MAX_NEIGHBOURS=50
+  -D MAX_MQTT_BROKERS=3
+  -D MQTT_MAX_PACKET_SIZE=1024
+  -D MQTT_DEBUG=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+  -D CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
+  -D ESP32_CPU_FREQ=160
+  -D WITH_SNMP=1
+build_src_filter = ${Station_G3_ESP32.build_src_filter}
+  +<helpers/bridges/MQTTBridge.cpp>
+  +<helpers/MQTTMessageBuilder.cpp>
+  +<helpers/JWTHelper.cpp>
+  +<helpers/ui/SH1106Display.cpp>
+  +<helpers/SNMPAgent.cpp>
+  +<../examples/simple_room_server>
+lib_deps =
+  ${Station_G3_ESP32.lib_deps}
+  ${esp32_ota.lib_deps}
+  elims/PsychicMqttClient@^0.2.4
+  bblanchon/ArduinoJson @ 7.4.3
+  arduino-libraries/NTPClient
+  JChristensen/Timezone
+  paulstoffregen/Time@1.6.1
+  0neblock/SNMP_Agent