I’m currently experimenting with hosting a static html site on Github, but using the formatting restrictions of the Gemini protocol.

no Javascript (or any other codes which intergrates with html, like CSS),

no head tags,

no bold/italic/underline/etc… tags,

no mixing tags in a way that breaks Gemini logic (like mixing a h1/2/3 tag with a link tag),

no inserting images directly with the src tag,

emoji/unicode is ok within the text,

bullet point tags,

h1, h2, and h3 tags,

pre-formatted text tags,

blocknote tags,

link tags.

That's it!