setup issue

From this page https://gitlab.com/BenWiser/googledocsblog I noticed that I need to download the project and make some small changes. But it seems I need to use linux? And it also seems I need to have kotlin installed? Even if I figure out how to do this on my local pc (Windows 10), how can I edit and post blog entries from google docs on another pc when I am elsewhere? The necessary project files will not be there.