The additional page thing makes me feel better. I think it's a really cool project, and sharing the percent match with the person is genius. The cover letter in

The additional page thing makes me feel better. I think it's a really cool project, and sharing the percent match with the person is genius. The cover letter in the example isn't really a cover letter, though. A bare-minimum cover letter would to me include _reasons_, e.g. "I've been teaching myself Rust in my off-time and migrating over from a mobile engineer to working in Rust full time really excites me."