I have an Ergodox Ez and use the Neo2 Layout. It's an ergonomically optimized keyboard layout for German, English and programming. I linked its project website in my above comment where you can see a graphic for the six layers of the tenkeyless section of the keyboard.

SimpleStacker

Yes, I frequently use em dashes ("—"). My 

 provides easy access to a lot of useful symbols, e.g., I also frequently use the actual quotation marks (“”), apostrophes (’), non-breaking thin space (" "), ellipsis ("…"), the multiplication symbol (×), some arrows (⇐⇔⇒↦), superscript (¹²³) and subscript (₁₂₃), have access to the lowercase Greek alphabet (αβγδεφ…), and a number of other useful math symbols (e.g., ∞∃∫∀√¬∨∧∥Σℕℝℤℚ).

AskSN

em-dashes on Stacker News?

Yes, I frequently use em dashes ("—"). My [keyboard layout](https://neo-layout.org/) provides easy access to a lot of useful symbols, e.g., I also frequently use the actual quotation marks (“”), apostrophes (’), non-breaking thin space (" "), ellipsis ("…"), the multiplication symbol (×), some arrows (⇐⇔⇒↦), superscript (¹²³) and subscript (₁₂₃), have access to the lowercase Greek alphabet (αβγδεφ…), and a number of other useful math symbols (e.g., ∞∃∫∀√¬∨∧∥Σℕℝℤℚ).