https://academicpages.github.io/

Running Locally

When you are initially working your website, it is very useful to be able to preview the changes locally before pushing them to GitHub. To work locally you will need to:

1. Clone the repository and made updates as detailed above.
2. Make sure you have ruby-dev, bundler, and nodejs installed: sudo apt install ruby-dev ruby-bundler nodejs
3. Run bundle install to install ruby dependencies. If you get errors, delete Gemfile.lock and try again.
4. Run jekyll serve -l -H localhost to generate the HTML and serve it from localhost:4000 the local server will automatically rebuild and refresh the pages on change.

How to link my domain to github page

https://www.namecheap.com/support/knowledgebase/article.aspx/9645/2208/how-do-i-link-my-domain-to-github-pages/

Verify your coustom domain for github page

https://docs.github.com/en/pages/configuring-a-custom-domain-for-your-github-pages-site/verifying-your-custom-domain-for-github-pages