I quite liked Kitty, and wanted to keep using it. But the slow startup was a deal breaker for me. Even with `--single-instance` it was at least 5x that of st for me, which is noticeable for an app I use very frequently. Besides, I'm not a fan of running a single instance of any app, since if (when) it crashes, all my work is gone.
Then I had a look around their issue tracker, and noticed others complained about this too[1]. And the dismissive and defensive response from the author just rubbed me the wrong way.