diff --git a/c_mpos/micropython.cmake b/c_mpos/micropython.cmake
deleted file mode 100644
index 18f6e45a..00000000
--- a/c_mpos/micropython.cmake
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright (c) 2024 - 2025 Kevin G. Schlosser
-
-# Create an INTERFACE library for our C module.
-
-add_library(usermod_c_mpos INTERFACE)
-
-set(MPOS_C_INCLUDES)
-
-set(MPOS_C_SOURCES
-    ${CMAKE_CURRENT_LIST_DIR}/src/hello_world.c
-    ${CMAKE_CURRENT_LIST_DIR}/src/quirc_decode.c
-    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/identify.c
-    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/version_db.c
-    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/decode.c
-    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/quirc.c
-)
-
-# Add our source files to the lib
-target_sources(usermod_c_mpos INTERFACE ${MPOS_C_SOURCES})
-
-# Add include directories.
-target_include_directories(usermod_c_mpos INTERFACE ${MPOS_C_INCLUDES})
-
-# Link our INTERFACE library to the usermod target.
-target_link_libraries(usermod INTERFACE usermod_c_mpos)
diff --git a/c_mpos/micropython.mk b/c_mpos/micropython.mk
index 80386a60..656c623f 100644
--- a/c_mpos/micropython.mk
+++ b/c_mpos/micropython.mk
@@ -1,8 +1,3 @@
-# Copyright (c) 2024 - 2025 Kevin G. Schlosser
-
-################################################################################
-# lcd_bus build rules
-
 MOD_DIR := $(USERMOD_DIR)
 
 ifneq (,$(findstring -Wno-missing-field-initializers, $(CFLAGS_USERMOD)))
@@ -17,7 +12,7 @@ SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/identify.c
 SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/version_db.c
 SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/decode.c
 SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/quirc.c
-#SRC_USERMOD_C += $(MOD_DIR)/quirc/openmv/collections.c
 
 CFLAGS+= -I/usr/include
+
 LDFLAGS+= -lv4l2
diff --git a/internal_filesystem/apps/com.example.btcticker/assets/echo.py b/internal_filesystem/apps/com.example.btcticker/assets/echo.py
index 947ea2ef..4ead11e4 100644
--- a/internal_filesystem/apps/com.example.btcticker/assets/echo.py
+++ b/internal_filesystem/apps/com.example.btcticker/assets/echo.py
@@ -1,9 +1,3 @@
-# example from https://github.com/micropython/micropython-lib/blob/master/python-ecosys/aiohttp/examples/ws.py
-# works with:
-# import mip
-# mip.install("aiohttp")
-# but only on esp32 target, not unix?!
-
 import sys
 import ssl