Thank you for the links - we'll check them out! The other thing we're currently concentrating on is improving / tuning the quality of the search results, when

Thank you for the links - we'll check them out! The other thing we're currently concentrating on is improving / tuning the quality of the search results, when you have a large, complex data set that feeds to many applications it requires careful consideration and ongoing reevaluation to tune the results and to make sure what people are expecting to find with their queries. We can release to production via our CI / CD pipeline as often as we need, so if any adjustments are required outside of the data itself it's trivial for us to release new code (images), on one of our other apps we were releasing to production over 40 times a day as features and fixes were developed.