These are public posts tagged with #googledesktop. You can interact with them if you have an account anywhere in the fediverse.
I managed to figure out how to modify the homepage in #GoogleDesktop with the magic of reverse engineering. I suppose I can make a hackers edition of #Google Desktop for fun.
When it comes to #fullTextSearch ... I recommend #recoll ... https://www.lesbonscomptes.com/recoll/
It does take some getting used to, but once you've configured it to fit your needs, it works quite nicely.
When you find yourself searching for scientific terms in the database of all the digital books and scientific publications you once downloaded ... and you find something ... you maybe find better results than on the web ... that's awesome.