I take it back, please don't throw stones

Python

import json
from pprint import pprint
import requests

data = [
  {
    "Surname": "Testing",
    "Name": "Tina",
    "Login": "tina.testing",
    "Mail": "tina.testing@domain.tld",
    "Password": "_SUPER_SECURE_CLEAR_TEXT_PASSWORD_"
  }
]

url="https://my.DOMAIN.TLD/api/v1/users"

headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer CLOUDRON_API_TOKEN"
    }

for value in data:
    values= {
        "email": value["Mail"],
        "displayName": f'{value["Name"]} {value["Surname"]}',
        "role": "user",
        "username": value["Login"],
        "password": value["Password"],
        "admin": False
    }
    jdata = json.dumps(values)
    try:
        # pprint(data)
        r = requests.post(url, data=jdata, headers=headers)
    except Exception as e:
        pprint(e)

I had no need for group mapping that is why the group user is hard coded and not mapped from the values.

If you can convert your CSV to fit JSON Object required for the request it should be even easier.

{
    "email": "jjnTB@eOvbuuolIyPahhKbpYAXiYncqvbIQQ.tl",
    "username": "cillum do dolore cupidatat",
    "displayName": "in dolore Lorem",
    "password": "nostrud Ut dolor consectetur",
    "admin": false
}

https://docs.cloudron.io/api.html#tag/Users/paths/~1users/post

Send them a magic link that they can use to create a new account in a given group?

This would be awesome.

Send them a magic link that they can use to create a new account in a given group?

this part might have to be automated via some curl calls though. Maybe we can add a "checkbox" in the import UI to invite users as well (cc @nebulon )