Welcome to the Midnight, ~bastokian!
I've been an almost daily user of Gemini for the past 3 or 4 years, and I visit the Midnight Pub using my Gemini browser (elpher) several days each week. While the host hasn't yet implemented posting or replying directly from Gemini clients, you can do so using the `midnight.sh` shell script provided on the Midnight Pub user manual page:
Check out the section called "Post using your terminal".
Incidentally, that's how I'm writing this post right now. *wink*
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