Cannot get Stub Generation to work

[dylan-baros]

I have the following cmake fie:

execute_process(
COMMAND python3 -c "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'), end='')"
OUTPUT_VARIABLE PYTHON_MODULE_EXTENSION
)

file(GLOB_RECURSE BINDING_SOURCES
"${CMAKE_CURRENT_SOURCE_DIR}/*.cpp"
)

nanobind_add_module(sirius_nanobind ${BINDING_SOURCES})

target_link_libraries(sirius_nanobind PRIVATE sirius_cpp)

set_target_properties(sirius_nanobind PROPERTIES
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
PREFIX ""
)

nanobind_add_stub(
sirius_nanobind_stub
MODULE sirius_nanobind
OUTPUT sirius_nanobind.pyi
PYTHON_PATH $<TARGET_FILE_DIR:sirius_nanobind>
DEPENDS sirius_nanobind

)

add_custom_command(TARGET sirius_nanobind POST_BUILD
COMMAND ${CMAKE_COMMAND} -E rename
"${CMAKE_BINARY_DIR}/lib/sirius_nanobind${PYTHON_MODULE_EXTENSION}.so"
"${CMAKE_BINARY_DIR}/lib/sirius_nanobind${PYTHON_MODULE_EXTENSION}"
)

Generates sirius _nanobind and I can use it in python no problem (only issue is that I get .so.so as an extension so that is why I rename it, it won't work if I do not. Would like a fix for this as well)

nanobind_add_stub just does not seem to do anything. No files are generated in any folder in the entire project. No errors are thrown, and if I use VERBOSE I do not get any additional messages. I can't provide a reproducible example because it will take some obfuscation, but can if no one has any ideas. Thanks.