analytics/lib/plausible_web/templates/billing/_paddle_script.html.eex

<script type="text/javascript" src="https://cdn.paddle.com/paddle/paddle.js"></script>
<script>
  <%= if Application.get_env(:plausible, :environment) == "dev" do %>
    Paddle.Environment.set('sandbox');
  <% end %>
  Paddle.Setup({vendor: <%= Application.get_env(:plausible, :paddle) |> Keyword.fetch!(:vendor_id) %> });
</script>