So, it's the start of the 3rd week now. I will be virtually meeting Aarya and Moritz again Tom. For the past few weeks now, I have been pushing commits to a Draft PR https://github.com/astropy/astropy/pull/11835 on GitHub. I wanted to have something working quite early in the project, in order to be able to pinpoint accurately when something doesn't work. This is why I started with directly adding the cdspyreadme code within Astropy. Afterwards, I am also writing the code from scratch. As more of the required features from cdspyreadme get integrated into cds.py , those files and codes added earlier will be removed. About the reading/writing to Machine Readable Table format, in fact I wrote about it briefly in my GSoC Proposal that I could attempt it as an extension. I don't have an opinion on whether or not it should have it's own format classes etc. However, since the title of my GSoC project is to Add a CDS format writer to Astropy , I would prefer to work on the ...