diff --git a/.gitmodules b/.gitmodules
index 87c47c0..7d5542f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -457,3 +457,9 @@
 [submodule "libraries/helpers/button_handler"]
 	path = libraries/helpers/button_handler
 	url = https://github.com/EGJ-Moorington/CircuitPython_Button_Handler.git
+[submodule "libraries/helpers/circuitpython_tmidi"]
+	path = libraries/helpers/tmidi
+	url = https://github.com/todbot/CircuitPython_TMIDI.git
+[submodule "libraries/drivers/pca9674"]
+	path = libraries/drivers/pca9674
+	url = https://github.com/XENONFFM/CircuitPython_PCA9674.git
diff --git a/circuitpython_community_library_list.md b/circuitpython_community_library_list.md
index 8e913b7..555a02a 100644
--- a/circuitpython_community_library_list.md
+++ b/circuitpython_community_library_list.md
@@ -42,6 +42,7 @@ Here is a listing of current CircuitPython Community Libraries. These libraries
 * [CircuitPython_NAU7802](https://github.com/CedarGroveStudios/CircuitPython_NAU7802.git) A driver for the NAU7802 24-bit ADC.
 * [CircuitPython PS2Controller](https://github.com/todbot/CircuitPython_PS2Controller.git) ([PyPi](https://pypi.org/project/circuitpython-ps2controller)) \([Docs](https://circuitpython-ps2controller.readthedocs.io/en/latest/)) CircuitPython library to read Sony PS2 game controllers
 * [CircuitPython_paj7620](https://github.com/deshipu/circuitpython-paj7620.git) A driver for the PAJ7620 gesture sensor.
+* [CircuitPython PCA9674](https://github.com/XENONFFM/CircuitPython_PCA9674.git) Driver for the NXP PCA9674(A) 8 channel I2C I/O expander ([PyPi](https://pypi.org/project/circuitpython-pca9674))
 * [CircuitPython qmc5883l](https://github.com/jposada202020/CircuitPython_qmc5883l.git) Driver for the QMC5883l magnetometer ([PyPi](https://pypi.org/project/circuitpython-qmc5883l/) )\([Docs](https://readthedocs.org/projects/circuitpython-qmc5883l/en/latest/))
 * [CircuitPython qmi8658c](https://github.com/jins-tkomoda/CircuitPython_QMI8658C.git) Driver for the QMI8658C inertial measurement unit ([Docs](https://circuitpython-qmi8658c.readthedocs.io/en/latest/))
 * [CircuitPython RDA5807](https://github.com/tinkeringtech/CircuitPython_rda5807) rda5807m FM radio chip CircuitPython library \([Docs](https://circuitpython-rda5807m.readthedocs.io/en/latest/))
@@ -136,6 +137,7 @@ Here is a listing of current CircuitPython Community Libraries. These libraries
 * [CircuitPython SoftKeyboard](https://github.com/FoamyGuy/CircuitPython_SoftKeyboard.git) Soft Keyboard for Touchscreens ([PyPi](https://pypi.org/project/circuitpython-softkeyboard/)) \([Docs](https://circuitpython-softkeyboard.readthedocs.io/en/latest/))
 * [CircuitPython Styles](https://github.com/jposada202020/CircuitPython_styles.git) Library helper to add styles to CircuitPython display functions CircuitPython widgets ([PyPi](https://pypi.org/project/circuitpython-styles)) \([Docs](https://circuitpython-styles.readthedocs.io/en/latest/))
 * [CircuitPython_TemperatureTools](https://github.com/CedarGroveStudios/CircuitPython_TemperatureTools.git) A collection of Dew Point, Heat Index, and  temperature unit helpers \([Docs](https://github.com/CedarGroveStudios/CircuitPython_TemperatureTools/blob/main/media/pseudo_rtd_cedargrove_temperaturetools.pdf))
+* [CircuitPython_TMIDI](https://github.com/todbot/CircuitPython_TMIDI.git) Alternate CircuitPython MIDI library, inherits from Winterbloom_SmolMIDI ([PyPi](https://pypi.org/project/circuitpython-tmidi/)) \([Docs](https://circuitpython-tmidi.readthedocs.io/en/latest/))
 * [CircuitPython_TOML](https://github.com/elpekenin/circuitpython_toml.git) A subset of CPython's built-in module for working with TOML data. Useful for complex data on `settings.toml` where `os.getenv` is not enough.
 * [CircuitPython_TouchCalibrator](https://github.com/CedarGroveStudios/CircuitPython_TouchCalibrator.git) A resistive touchscreen calibrator for Adafruit built-in and TFT FeatherWing displays
 * [CircuitPython TZDB](https://github.com/evindunn/circuitpython_tzdb) IANA timezones for adafruit_datetime ([PyPi](https://pypi.org/project/circuitpython-tzdb/)) \([Docs](https://circuitpython-tzdb.readthedocs.io/en/latest/))
diff --git a/libraries/drivers/pca9674 b/libraries/drivers/pca9674
new file mode 160000
index 0000000..f742296
--- /dev/null
+++ b/libraries/drivers/pca9674
@@ -0,0 +1 @@
+Subproject commit f7422969e02852d9bdac0ef14e64ea30c47324c6
diff --git a/libraries/helpers/tmidi b/libraries/helpers/tmidi
new file mode 160000
index 0000000..30633c3
--- /dev/null
+++ b/libraries/helpers/tmidi
@@ -0,0 +1 @@
+Subproject commit 30633c343d7412f7e24798824bc76dcea9204171