pos/pos_empty_home/static/src/xml/pos_empty_home.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
    Copyright (C) 2017-Today: La Louve (<http://www.lalouve.net/>)
    Copyright (C) 2019-Today: Druidoo (<https://www.druidoo.io>)
    @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
    License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-->

<templates id="template" xml:space="preserve">

    <t t-extend="ProductListWidget">
        <t t-jquery=".product-list" t-operation="before">
            <div class="product-list-empty-home">
                To select a product, please scan a barcode or search products by category or by name
            </div>
        </t>
    </t>

</templates>