if i may submit one more hack, for anyone interested in giving their zine a soundtrack:
for music, add this line to the HTML file in the <body> tag, after the ezmreader.js <script> tags
<audio src="song.mp3" autoplay loop display="none">
then rename the html "index.html" and zip it, along with your song (make sure the name matches the one in the html!) and of course your zine into a ZIP or RAR file, and upload to Itch like normal
here's screenshots for any visual learners:
