Any way to install local version of AWS OpenSearch for development purpose?

I mostly use LocalStack to emulate any AWS dependencies while doing local development. I have a LocalStack docker container running in my machine with required AWS services.

It works pretty well most of the cases except few minor issues. I have had some issues while connecting to LocalStack SQS from my Java application container. I got it resolved using this method.

But I am facing a bigger issue while connecting to LocalStack OpenSearch from my application container. OpenSearch generates a search domain name which can be accessed directly from my local machine. But from another docker container it doesn't work. Docker network doesn't recognize the newly generated hostname. The issue is similar to this. The link has a hacky solution, but I am not able to get it to work. I also don't want to buy the premium feature as mentioned there.

Now my question is, does AWS provide some installable package that we can use to install OpenSearch locally? I know we have it for DynamoDB. I can obviously download & install OpenSearch from the standard repo. But I want to emulate AWS hosted OpenSearch so that I can test out signed request flow during development. I couldn't find any alternative, so I am running a actual cluster in AWS to test things out. Please let me know if anyone has a better solution.