(1) I've somewhat stumbled on a persona as a Fox-photographer who strongly communicates that he is a public affordance which (a) helps me get better photos of people, (b) gets me flagged down by people telling me about interesting things going on like

https://mastodon.social/@UP8/116021033821248982

and (c) results in handing out several business cards a day

https://mastodon.social/@UP8/115901190470904729

and I'm within sight of having to reorder cards. I just finished a landing page for the cards (before they went to one of my socials)

https://gen5.info/demo/fox/

but having to reorder the cards I am planning on making a next generation card which has a unique chibi and unique QR code that will let me personalize the landing page for cards, particularly I will be able to share a photo just with the person who has the card.

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(2) I've been doing heart rate variability biofeedback experiments and I have this demo

https://gen5.info/demo/biofeedback/

which is still not quite done but has source code at

https://github.com/paulhoule/VulpesVision

It works with most heart rate monitors that support the standard BTLE API not just the H10. I run it on the Windows desktop with Chrome and with Bluefy on iPad. Once it displays the instantaneous heart rate I can control

https://en.wikipedia.org/wiki/Mayer_waves

by following the slope of the instantaneous heart rate, breathing out when it is slowing down and breathing in when it is speeding up. This greatly intensifies the Mayer_wave and increases the SD1 metric. I think this drops my blood pressure significantly when I'm doing it. This needs better instructions and some kind of auditory cue so I can entrain my breathing when I am looking at something else. Longer term I am interested in incorporating some other biofeedback gadgets I have like a respiration monitor (got an abdomen band and a radar which could probably even read HRV if I had the right software for it) and a GSR sensor, and EMG sensor, etc.