I appreciate the project and would follow up on its development, it looks quite interesting, however I must make a small highlight regarding the title. The writing makes it seem as if SearX is not open source and provides ads. I think some rephrasing might make it more accurate.
Have not done any in a while due to other work. But mostly consisted of Helix (editor) in multiple Alacritty (terminal emulator) instances (AWM Dynamic Window Manager for Window Management). That’s all that would be open. All my work is on the terminal; easy, fast, to the point, no visual obstructions. (In fact I ironically find it inconvenient in my case to use GUI Applications these days.)