How to import a local extenal module as project with cloning

[hitsmaxft]

I'm building ZMK config module in a repo, containing a module.
i perfer include this module as local project, but not remote project in west.yaml, which means i have to run ' git push ; west update' every time i modify my module.

I've figured it out that passing -DZMK_EXTRA_MODULES=abs_path into west command line could make it into a ZEPHYR_EXTRA_MODULE, so everything goes happy

zmk_exts/zmk/app/CMakeLists.txt
6:set(ZEPHYR_EXTRA_MODULES "${ZMK_EXTRA_MODULES};${CMAKE_CURRENT_SOURCE_DIR}/module;${CMAKE_CURRENT_SOURCE_DIR}/keymap-module")

But I still want to know how to add a local repo as a module, avoiding cloning from remote.
Thank you for your for a kind reply