human: FWIW I don't have that problem when running Ement in gnome-terminal or xterm. You're seeing double-width characters being rendered with single-width substitutes, which throws out the column counts. I don't know whether that's the fault of the font or the terminal emulators, but test some different combinations of both.

Actually… I do get some (different) rendering glitches in gnome-terminal – more to do with height than width, in my case. If you can find a font where every character displays at the same size, though, I expect you'll be sorted.

Failing that, you could try setting a custom buffer-display-table to remap all of the emoji code points.

Welcome to those who joined recently.

Welcome, Fran Burstall.

Fritjof: (customize-option 'ement-room-send-message-filter) and select the org-mode option, and then you can use arbitrary org syntax, and the org-to-html export will be used to generate the appropriate HTML (which is what Matrix actually needs – the Element client similarly recognises markdown and converts `...` to <code>...</code> or similar).

So you can use =...= or ~...~ for inline cases, and code blocks for larger things.

I find org-tempo convenient for starting a new code block, and I use C-c C-, to wrap a region I've already typed. The 'verse' block type is also useful when you don't want the code face, but you don't want your newlines to be collapsed in the org-to-html export.

rix: No idea. My first thought was to wonder whether it could be some Byte Order Mark thing. That's the sequence EF BB BF for UTF-8, so it's not that, but mayyyybe some kind of corruption of that could be behind it? Maybe. (But probably not.)