If you are uncertain on how to waste a day, toss all your proprietary #zigbee hubs. Setup #HomeAssistant, a #mqtt broker and add some #Zigbee2MQTT (and a SLZB-06M) and you are good to pair, update and automate all 28 devices of yours.
Make sure to buy 12 more LED spots so you don't run out of work for the next days to come.