Watching TypeScript CDK Builds

Hello,

I need to be able to watch for my TypeScript lambda function changes within my CDK app. I'm using SAM to locally invoke the API and do not want to deploy to the cloud each time changes happen. So using something such as SAM Accelerate, for example, is not an option.

Currently, I must run cdk build and sam local start-api manually each time I change a single line in my function code, and it painfully takes a long time to start.

Any solutions or workarounds for this?