On mine, for example, a link back to my homepage is:
=> index.gmi Home
A link to another Gemini capsule would be like thus:
=> //brewed.midnight.pub/table.gmi The Table
As you can see, "gemini:" is not necessary in Gemini-to-Gemini links.
Thank you so much I appreciate you taking the time to explain it and I say this is infinitely far most simpler than the html monster.