Question: I would like to show 'Low Stock Notification' on my website.
I have set 'Only X left Threshold' globally.
Is there any possibility to set this for each product individually?

Answer: 
There is another way. **We should know that we can override the html template via RequireJS. We don't need to create a custom theme**. In your custom module, create a `requirejs-config.js`:

*app/code/{Vendor}/{Module\_Name}/view/frontend/requirejs-config.js*

```
var config = {
    map: {
        '*': {
            'Magento_Checkout/template/minicart/content.html':
                'Vendor_ModuleName/template/minicart/content.html'
        }
    }
};

```

A more explain we can read more [here](https://magento.stackexchange.com/questions/108788/how-to-override-template-files-for-magento2-extension/121702#121702).
Although Khoa TruongDinh's answer was really helpful, there are some details missing so here is a full example:

Working minicart example, copy the html template to:

```
[theme_path]/Magento_Theme/web/template/minicart/content.html

```

and in themes requirejs-config.js =>

```
var config = {
    "map": {
        "*": {
            'Magento_Checkout/template/minicart/content.html': 'Magento_Theme/template/minicart/content.html'
        }
    }
};

```

See also core bug: <https://github.com/magento/magento2/issues/5832>