You don't need to "come back and optimize" if you don't start with needing a progress indicator for a "transform: scale" animation to display a single static download link. The number of hits is not relevant.
Neither do you need to do three separate fetch requests for static plain text examples that you then laboriously dump into the DOM by creating dummy elements, putting content in there, then looking up and cloning `code` tags to then dump those code tags on the page.