But I really love using it for escape. I'm on a 2014 model but not going to the corner for escape is great. Plus I'm about to get one of these new ones, and I feel prepared since I have zero usage of the top row (other than the special functions).

    {
        "description": "Change caps_lock to hyper/escape.",
        "from": {
            "key_code": "caps_lock",
            "modifiers": {
                "optional": [
                    "any"
                ]
            }
        },
        "to": [
            {
                "key_code": "left_shift",
                "modifiers": [
                    "left_command",
                    "left_control",
                    "left_option"
                ]
            }
        ],
        "to_if_alone": [
            {
                "key_code": "escape"
            }
        ],
        "type": "basic"
    }

There are tons of settings posted on Github, and I just modified someone else's to get:

    {"description":"Change right_shift alone to delete_forward",
    "manipulators":[{
    "from":{"key_code":"right_shift","modifiers":{"optional":["any"]}},
    "to":[{"key_code":"right_shift"}],
    "to_if_alone":[{"key_code":"delete_forward"}],
    "type":"basic"}]}