So my interface to all of my text files is Redis.

I use the simple Redis data structures to store the data and with a common interface I am able to populate all sorts of different tools for indexing and search.

Then from there I use the following tools...

elasticsearch

https://github.com/blevesearch/bleve

Recently I have been experimenting with...

https://github.com/meilisearch/MeiliDB

By maintaining Redis as my interface engine, I can experiment with all sorts of different tools in different programming languages...

Over time I have grown to love Redis as my data store...

Of course I have a simple way of getting the common text files that I write my daily journal in into Redis.

And then from there its just a matter of the common interface into the different indexing / search technologies.