title: where to write DAG files in apache air flow?
body: <p>I just started learning apache airflow, and I created an environment in composer in gcp and web server is working fine and everything, but I was just confused about where to write the DAG file? I mean I want to write the file where I can test it multiple times because in the web UI it's showing me a bucket where I can store the file, but I am unable to understand where to write the code. do I have to install airflow in my machine?</p>
  <p>p.s - i know this is a stupid question, any help will be appreciated</p>