workspace-1.json

{
  // emacs
  "layout": "stacked",
  "border": "normal",
  "current_border_width": 2,
  "floating": "auto_off",
  "percent": 0.5,
  "swallows": [
    {
      "class": "^Emacs$",
      "instance": "^emacs$",
      "transient_for": "^$"
    }
  ],
  "type": "con"
}
{
  // splitv split container with 2 children
  "layout": "splitv",
  "percent": 0.5,
  "type": "con",
  "nodes": [
    {
      "border": "normal",
      "current_border_width": 2,
      "percent": 0.7,
      "type": "con",
      "swallows": [
        {
          "class": "^Emacs$",
          "instance": "^emacsTerm$",
          "transient_for": "^$"
        }
      ]
    },
    {
      "border": "normal",
      "current_border_width": 2,
      "percent":0.3,
      "type": "con",
      "swallows": [
        {
          "class": "^XTerm$",
          "instance": "^xterm$",
          "transient_for": "^$"
        }
      ]
    }
  ]
}