Idk man, this is a successful project that's half a decade old[1], has over 40k stars, is wildly popular in eg. the UnixPorn and TWM communities, and is packaged by most other distros; I don't really see any cause for concern ¯\_(ツ)_/¯
[1]: Dated via the dev's release blog post: https://jwilm.io/blog/announcing-alacritty/