Okay, this solves a feature I was occasionally missing for a long time: searching for several terms in files (the "Googling files" feature). I wrote a 8 line script a few weeks ago to do this, that I will gladly throw away. I'll look into the TUI too.

(I've been using ripgrep for quite some time now, how does this otherwise compare to it? would I be able to just replace rg with ug?)