I am currently building a pipeline that 1. pulls data from a google sheet -> 2. gets gpt to write a summary of the data -> 3. sends a message on slack. I have heard that I can use dagster to run this on a schedule as well as change one variable each time it runs, I have written the code and it works already but am not sure how to convert it into a dagster project, has anyone created something similar which I could take a look at, or have advice for how I can approach this project.