I use both TablePlus and DynamoDB at work. I don't see any reason to bother trying to put DynamoDB support into TablePlus. DynamoDB is great at its one killer

I use both TablePlus and DynamoDB at work. I don't see any reason to bother trying to put DynamoDB support into TablePlus. DynamoDB is great at its one killer feature of supporting arbitrarily huge tables without you having to worry about any details. For everything else, it's just kind of adequate, considering the constraint of needing to support multi-Terabyte tables. It lacks a huge number of features that all RDBMSes have that would admittedly be impossible or not make sense on huge tables. Thus, it doesn't make much sense to try to access it from a RDBMS GUI. The AWS Console provides all of the GUI that really makes sense for it, plus the CLI tools and API.