I want to convert the NCDU json file (https://dev.yorhel.nl/ncdu/jsonfmt) to a hierarchical json that can be imported in D3.js using D3.json(). Here is the D3 sample file flare.json (https://raw.githubusercontent.com/d3/d3-hierarchy/main/test/data/flare.json).

Tree structure where NCDU is run:

dotfiles/
├── apache
│   └── security.conf
├── bash
│   └── bin
│       ├── ipChangeAlert.sh
│       ├── mycommands.sh
│       └── send_reboot_email.sh
└── settingUpGit.md

NCDU output data.json:

[1,1,{"progname":"ncdu","progver":"1.15.1","timestamp":1717703526},
[{"name":"dotfiles","asize":4096,"ino":6192449488235659},
[{"name":"apache","asize":4096,"ino":1970324837438018},
{"name":"security.conf","asize":97,"ino":2251799814148886}],
[{"name":"bash","asize":4096,"ino":2251799814286493},
[{"name":"bin","asize":4096,"ino":1970324837438020},
{"name":"ipChangeAlert.sh","asize":1187,"dsize":4096,"ino":1970324837438249},
{"name":"mycommands.sh","asize":2421,"dsize":4096,"ino":2251799814148893},
{"name":"send_reboot_email.sh","asize":356,"ino":1970324837438244}]],
[{"name":"htop","asize":4096,"ino":1407374884154553}],
{"name":"settingUpGit.md","asize":2504,"dsize":4096,"ino":1970324837438080}
]]

Desired output:

{
  "name": "dotfiles",
  "asize": 4096,
  "dsize": 0,
  "ino": 6192449488235659,
  "hlnkc": false,
  "read_error": false,
  "nlink": 1,
  "notreg": false,
  "extension": "",
  "children": [
    {
      "name": "apache",
      "asize": 4096,
      "dsize": 0,
      "ino": 1970324837438018,
      "hlnkc": false,
      "read_error": false,
      "nlink": 1,
      "notreg": false,
      "extension": "",
      "children": [
        {
          "name": "security.conf",
          "asize": 97,
          "dsize": 0,
          "ino": 2251799814148886,
          "hlnkc": false,
          "read_error": false,
          "nlink": 1,
          "notreg": false,
          "extension": "conf"
        }
      ]
    }
  ]
}

I have tried using both js in bash and iterating through the list in python, but neither approach seems to be managing the structure correctly, and I am getting directories that are dropped or files that are considered directories