Interactive Mermaid Sequence Runner
Step through Mermaid sequenceDiagrams in a cross-ledger demo console style. Edit the source, auto-play the flow, and inspect each step in a detail panel. Open app (full page)
READ BRIEFING →Timer
This is the timer I use during workouts. Whether I’m holding a plank, hanging from a pull-up bar, or doing any exercise where I can’t look at the screen, this app keeps me on track. I set the time or switch to Stopwatch, hit Start, and it speaks the remaining (or elapsed) time out loud so I can stay fully focused. I sometimes use it for rest between exercises, or even when cooking or brewing my tea, though in that setting it may be annoying to hear the time repeatedly.
READ BRIEFING →Coherent Breathing
Coherent breathing is a simple, scientifically studied breathing technique that promotes calmness and balance in the nervous system. It involves breathing at a steady rhythm of about 5 breaths per minute — typically inhale for 5–6 seconds and exhale for 5–6 seconds. This pattern helps synchronize heart rate variability, reduce stress, and improve focus and emotional regulation. Practice for 5–10 minutes daily while sitting or lying comfortably, keeping attention on smooth, relaxed breathing.
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