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Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal
A frictionless daily habit tool for cardiac patients, offering a non-pharmacological intervention without app store, account, or subscription dependencies.
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AI Executive Synthesis
A frictionless daily habit tool for cardiac patients, offering a non-pharmacological intervention without app store, account, or subscription dependencies.
This utility targets a highly specific personal health niche, leveraging a developer-centric, open-source approach. Its value proposition centers on extreme friction reduction for a health habit, appealing to users prioritizing control and minimal overhead. The lack of dependencies and terminal-first design aligns with a segment valuing self-contained tools. While demonstrating a trend towards specialized, accessible utilities, its direct B2B SaaS market applicability is limited. The product's open-source nature and specific health focus restrict its scalable revenue potential within a traditional SaaS framework, positioning it more as a community-driven health tool than an enterprise solution.
I built a terminal app that paces slow breathing at 6 breaths per minute for vagal tone training. It's a single Python file, stdlib only, no dependencies — just run breathe and follow the bar.I'm a cardiology patient (HFrEF). Slow breathing at resonance frequency is one of the few non-pharmacological interventions shown to improve cardiac vagal tone and baroreflex sensitivity (Bernardi et al., Circulation 2002; Lancet 1998). I wanted a frictionless daily habit tool — no app store, no account, no subscription, just open terminal and go.Design constraints, all grounded in the clinical literature:- No breath retention — Valsalva risk in cardiac patients- No rapid breathing — minimum 8-second cycles- Exhale ≤ 2x inhale — no evidence for extreme ratios- Immediate exit, always — q or Ctrl+C restores the terminal even on crashThe README includes a resonance frequency measurement protocol for anyone with a chest-strap HRV monitor who wants to find their individual optimum instead of using the 6 bpm default.macOS only (uses afplay for audio cues). MIT licensed.pip install breathe-cliorbrew tap marekkowalczyk/breathe && brew install breathe.
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What is Breathe CLI – Paced resonance breathing in the macOS terminal?
Breathe CLI – Paced resonance breathing in the macOS terminal is analyzed by our AI as: A frictionless daily habit tool for cardiac patients, offering a non-pharmacological intervention without app store, account, or subscription dependencies.. It focuses on This utility targets a highly specific personal health niche, leveraging a developer-centric, open-source approach. Its value proposition centers o...
Where did Breathe CLI – Paced resonance breathing in the macOS terminal originate?
Data for Breathe CLI – Paced resonance breathing in the macOS terminal was aggregated directly from the Hacker News community ecosystem, representing raw developer and early-adopter sentiment.
When was Breathe CLI – Paced resonance breathing in the macOS terminal publicly launched?
The initial public indexing or launch date for Breathe CLI – Paced resonance breathing in the macOS terminal within our tracked developer communities was recorded on May 31, 2026.
How popular is Breathe CLI – Paced resonance breathing in the macOS terminal?
Breathe CLI – Paced resonance breathing in the macOS terminal has achieved measurable traction, logging over 82 traction score and facilitating 10 recorded discussions or engagements.
Which technical categories define Breathe CLI – Paced resonance breathing in the macOS terminal?
Based on metadata extraction, Breathe CLI – Paced resonance breathing in the macOS terminal is categorized under topics such as: vagal tone training, HFrEF, cardiac vagal tone, baroreflex sensitivity.
What are some commercial alternatives to Breathe CLI – Paced resonance breathing in the macOS terminal?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as YAGNI, which offers overlapping value propositions.
How does the creator describe Breathe CLI – Paced resonance breathing in the macOS terminal?
The original author or development team describes the product as follows: "I built a terminal app that paces slow breathing at 6 breaths per minute for vagal tone training. It's a single Python file, stdlib only, no dependencies — just run breathe and follow the bar.I'm a..."
Community Voice & Feedback
37 days into quitting smoking and breathing exercises have been a huge help for the craving spikes. a simple terminal tool for paced breathing actually makes a lot of sense - when the craving hits at 3pm and youre staring at a screen anyway, having it right there in the terminal is way less friction than pulling out a phone app. starred.
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I love the zero dependency implementation. I do this style of breathing during specific time periods of practicing Qi Gong. I will try your script when I get to my laptop. Thanks.
this book is somewhat usefulhttps://archive.org/details/etaq_light-on-pranayama-b-k-s-iy...
Nice work on the zero-dependency approach. I'm building a similar tool for Windows (voice-to-text) and the "no account, just run" philosophy resonates — friction kills daily habits.
This is cool, I have SVT and usually am able to stop an episode if I do slow breathing like that; although sometimes if that doesn’t work the modified reverse valsalva manoeuvre does it every time.
Looks interesting. And it's pure Python with no 3p packages. Pretty trivial to support other OSes: make that audio player invocation configurable.
This reminds me of another HRV training from few years back shared here.- https://news.ycombinator.com/item?id=37538028- https://github.com/kieranabrennan/every-breath-you-take
Very nice. I have no heart issues but have been experimenting with extended breathing/longer exhales to calm down my sympathetic nervous system. I believe intentional breathing is a big, mostly underutilized tool all of us have to be generally more relaxed and healthier and also to calm ourselves down in stressful situations
Terminally breathing
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