First setup a repo with your prefered ssg and create some .md files as demo install the lightcms bot to the repo and everything is done. You are now free to generate write your craft and publish your content. Btw you need to have some preconfigured CI/CD pipeline to generate your static site and publish it to your prefered hosting platform. You can use github actions for this. There are multiple free hosting platforms available like netlify, vercel etc. Btw I have a article describing how to do ci/cd the easy way. you can refer to it here.