The program is so good, and has enough of a reputation that I knew to reach for it even though I know nothing about reversing, and that was 3-4 years ago now! Also shoutout to the awesome GUI library is uses; https://github.com/ocornut/imgui
Past attempts to use after downloading and running it natively have revealed it to be very crashy. Trying the browser-based demo today and doing the first thing that comes to mind (loading a ZIP) produces an error that the pattern language interpreter can't resolve the "import std.mem" line, for which there seem to be no hits on Google.
The poor font rendering is also not ideal, nor the fact that the "immediate mode" approach to the GUI (perversely favored by the kinds who tend to identify with software craftsmanship, including ostensible focus on performance, including opposition to bloat and unnecessary resource use) also means fans are constantly spinning up. Running these kinds of apps is basically the same as running a game...