Hello, I'm a developer at a tech company in North Carolina that was interested is creating an alexa gadget. We see that the support for the alexa gadget toolkit has been paused so we are wondering if there is another way we can achieve what we want to do. Idea is just to have a device that sends alerts to an alexa device based on information from sensors (similar to how a security alarm would report that something is wrong or a thermostat may report that it's too cold or hot) and for a person to customize settings for the device using the amazon alexa app. We would like to use bluetooth instead of zigbee, ble, wifi, etc. for the device. Is there some way we can still implement something like this for current and future alexa devices?