It literally looks like a clone of fzf or sk complete with prompt and file previews. The fact that ithe article doesn't event reference the prior art is deeply concerning.
Eh, tried it. Doesn't seem to support regex or even wildcard matching, which is... suboptimal. The preview window also often fails to show the content of the current file correctly.
I'm with the others: fd default syntax is easier to remember.
And for the interactive search I'm using skim. With it I cd to the dir I want and Alt t to trigger fuzzy finding. There are also bindings to search for dir or in the history. The neat part is that results are inserted as is in the command line, no need to xargs or copy them. It also make the history look like I always know where the files I want are when in reality they are just fuzzy-found
Also if you are looking for a replacement for find that is not a full tui then take a look at fd which works more like what the author expected from the find commad - fd <pattern>.
find can be a bit slow because it enumerates every directory recursively from the root you specified, but it let's you do a lot more than just search by name. locate is available on most distros and give fast results, albiet from when the index was last rebuilt (usually nightly). They both have the vital property that they output a list of files to stdout for further processing.
Because sometimes people want to share solutions that work for them. A clunky solution that you remember is better than the optimal solution you can't access.