I appreciate that!
Firebase is faster than Airtable or Google Sheets but I don’t think you can use it with a data viewer list.
This might be something to check out: Data Source Performance Workaround FOUND!
The problem with your newest blocks is that the row id has to be an actual ID (a long string of characters) or an integer.
But also, you’re going to have to look into how to use the “get property of object” block to parse the green rows block value. That’s the link I provided earlier.