Hi. Great tool. Found it recently. One issue: I searched for "jetbrains" under "All" and expected to find "jetbrains.clion" but didn't. It does show up correctly when searching the same under "Nix Packages".
Alan Pearce referenced this ticket in commit 8656f47.
Thanks for the report. Fixed in v0.1.10, which is now deployed. https://searchix.alanpearce.eu/all/search?query=jetbrains shows the same packages as https://searchix.alanpearce.eu/packages/nixpkgs/search?query=jetbrains now