Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal

A tiny new macOS terminal app called Breathe CLI promised something unexpectedly wholesome: open your command line, follow a bar, and do slow guided breathing to help your body calm down. The creator leans hard on medical studies, saying slow breathing can support heart health and reduce stress, while also stressing that this is not a medical device. In plain English: it’s a minimalist breathing coach for people who want to skip flashy wellness apps and just inhale next to a blinking cursor.

But the real show was in the comments, where the community instantly turned this into a mix of wellness confessional, comedy club, and code review. The biggest laugh came from the brutally efficient joke “Terminally breathing”, which pretty much wrote the headline for everyone else. Another commenter brought the earnest energy, saying intentional breathing is a “mostly underutilized tool” for relaxing and handling stressful moments — a reminder that beneath the terminal aesthetic, some people genuinely love the idea.

Then came the micro-drama: one user tossed out the dismissive “AI slop comment,” a tiny grenade of internet suspicion that suggested not everyone was buying the vibe. Others skipped the snark and went straight into builder mode, noting it’s pure Python with no extra packages and arguing it should be easy to bring to other operating systems too. One commenter even linked a previous HN breathing project, because on the internet, no meditation tool arrives without someone saying, “this reminds me of that other one.”