Make existing html file into the index of my webpage

I was making my own webpage as raw html until I recently decided to switch to Hugo.

The thing is that Hugo uses Markdown and that’ll make difficult (and quite tedious) to remake the whole main page.

Is there a way to use my existing html file as the index page of my Hugo project? I was thinking about using Hugo for the Blog section of the page, which would be linked to the existing index page.

Thanks.

If you are using the base/block layout approach:

layouts/_default/
├── baseof.html   
├── home.html  <-- put your html here
├── list.html
└── single.html

layouts/_default/home.html

{{ define "main" }}
  whatever HTML you want
{{ end }}