How you can use Electrum with an area regtest community?

The issue

• I’ve a regtest community working in 127.0.0.1:18443.
• I can entry to regtest with person:123.
• I want to use Electrum (v4.0.2) with my native regtest however I can’t notice how to do this.

What I attempted

Once I run:

electrum --regtest

The Electrum console opens as anticipated however the standing is just not linked:

My ~/.electrum/regtest accommodates:

{
    "auto_connect": false,
    "blockchain_preferred_block": {
        "hash": "0f9188f13cb7b2c71f2a335e3a4...........a11466e2206",
        "top": 0
    },
    "check_updates": false,
    "config_version": 3,
    "dont_show_testnet_warning": true,
    "gui_last_wallet": "/dwelling/xxx/.electrum/regtest/wallets/default_wallet",
    "is_maximized": false,
    "oneserver": false,
    "recently_open": [
        "/home/xxx/.electrum/regtest/wallets/default_wallet"
    ],
    "rpcpassword": "123",
    "rpcuser": "person",
    "server": "127.0.0.1:18443:s",
    "show_addresses_tab": true
}

I modified rpcpassword and rpcuser with the person:cross of my native regtest, however I am nonetheless unable to attach Electrum with my native community.

My questions

• What am I doing flawed?
• What does the “s” imply in 127.0.0.1:18443:s?
• What’s working in 127.0.0.1:51002?