A retro-looking font shows the configuration sequence I described.

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   blinry (blinry@chaos.social)'s status on Saturday, 07-Dec-2024 06:32:08 JST blinry

   I'm building a tiny terminal emulator from scratch, to better understand how they work!

   And I found something cool: My backspace key wasn't working. I was sending ASCII 0x8 to `sh`, but it just replied with "^H".

   Turns out you can change that! `stty -a` showed me that the erase character was set to "^?" (whatever that is). So I changed it with `stty erase ^H", and now it works!

   `sh` even outputs the sequence <backspace><space><backspace>, like a typewriter "overtyping" a letter with a space!