Location of .ungitrc

[Lonerider2010]

Running my environment on Ubuntu, I am able to run ungit in three different ways:

1. as standalone program ungit and can use a lot of options, see ungit -h
2. as web application at URL http://localhost:8448/#/
3. as VSCodium extension

Each of the three instances uses obviously a different configuration, as each home page lists different repositories,
with the VSCodium extension having no home page.
So I thought that should depend on different configuration files .ungitrc.
The problem is that I cannot find any ungit configuration file at all.
Where can I find them?

[jung-kim]

config.js is where it is.

They will all be using the file at ~/.ungitrc. Below is my file as an example

[~]$ cat ~/.ungitrc
{
  "launchBrowser": false,
  "defaultRepositories": [
    "/Users/aaa/bbb/ccc",
  ],
  "bugtracking": true,
  "logLevel": "debug"
}