Play Quake in the terminal, from the shareware or registered game files or LibreQuake's.
mix quake --dir /games/quake
mix quake --dir /games/quake --map e1m1 --skill 2--dir is the game directory (holding pak0.pak) or the one above it holding
id1; it defaults to config :elixir_quake, :dir, which QUAKE_DIR sets.
--map defaults to start, where the episode and skill are chosen by walking.
--skill is 0 (easy) to 3 (nightmare), default 1. --picture (or CAULDRON_PICTURE) is how the picture
reaches a terminal that keeps images, as Cauldron2D.Drafter.Client.Picture reads it:
any of native, native:N, size:WxH, png and swap, comma separated, or
none; default native:1,swap. --mute plays no sound
(CAULDRON_MUTE=1 too).