prefect fIle not found error using local externally built docker image

[cakir-enes]

So agent and server is running locally, not inside the docker
I've updated client_docker/Dockerfile to this

FROM prefecthq/prefect:2-python3.11
RUN mkdir -p /usr/app
COPY ./app/ /usr/app
WORKDIR /usr/app

Then changed client_docker/app/weather.py to this

if __name__ == "__main__":
    flow_identifier = datetime.today().strftime("%Y%m%d%H%M%S-") + str(uuid.uuid4())

    docker_block = DockerContainer(
        image="plzwerk:2",
    )

    b = docker_block.save("plzdocki", overwrite=True)
    deployment = Deployment.build_from_flow(
        name="idk",
        flow=get_paris_weather,
        work_queue_name="ecs",
        path="/usr/app",
        apply=True,
        infrastructure=docker_block,  
    )

When agent picks up this flow it throws

 raise ScriptError(user_exc=exc, path=path) from exc
prefect.exceptions.ScriptError: Script at '../prefect-docker-compose/client_docker/app/weather.py' encountered an exception: FileNotFoundError(2, 'No such file or directory')

Im calling weather.py to deploy the flow from somewhere else on host, why would prefect use host relative fs path to find the flow shouldnt it just use path argument and get_paris_weather (flow functions name) to get it? How to fix this?