It's very helpful. I also didn't know an app already existed for this, though when I searched for it just, I couldn't find any info on it apart from that it's part of some AIO.Also note sure if this is helpful, but I tried the other tool for this purpose, pctl-shooter and it was able to reset my pin without crashing. Your tool still crashes me when I try and change pin.
I have another version that should fix the crash you're having. Would you mind testing it for me again please?