vracoop_pos_free_balance_v2/views/assets.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

	<template id="vracoop_assets_frontend" inherit_id="point_of_sale.assets">
        <xpath expr="." position="inside">
        	<script type="text/javascript" src="/vracoop_pos_free_balance_v2/static/src/js/models_and_db.js"/>
            <script type="text/javascript" src="/vracoop_pos_free_balance_v2/static/src/js/custo_header.js"></script>
            <script type="text/javascript" src="/vracoop_pos_free_balance_v2/static/src/js/devices.js"/>
            <script type="text/javascript" src="/vracoop_pos_free_balance_v2/static/src/js/container.js"></script>
        </xpath>
        <xpath expr="//link[@id='pos-stylesheet']" position="after">
        	<link rel="stylesheet" type="text/scss" href="/vracoop_pos_free_balance_v2/static/src/css/style.css" />
        </xpath>
    </template>

</odoo>