That's totally right! It's incredible just how much ambient information is visible to consumer cameras that human eyes and brains can't or don't process.

We're always happy for more beta testers, especially with a variety of diverse situations and environments (true heart rate, lighting conditions, etc).

To sign up as a beta tester, fill out the Android Sign Up form at https://heartrate.hedronvision.com/ - that will let us reach out with a beta app when we build it!

Done deal. I'll put in a little sweat for you when it's available.

Co-creator here! Feel free to ask us anything.

Check it out if you can — it downloads really quickly, and it's free!

Looks really awesome! Does it work in a variety of lighting conditions?

We've tested across quite a few--and it should control for constant, weird lighting.

But there are definitely edge cases that are hard to control for--a faint, pulsing red light would probably be the worst one.

How did you iterate on the game mechanics in the early stages of development? Was the original version of the game significantly different from the final released product?

It's actually remarkably similar now to what it was really early on. There's a lot more refinement and polish now.

Here's a video from about 2 weeks into the project (it was codenamed Fractured at that time):

https://www.youtube.com/watch?v=BeMt9UJIPS0

One key mechanic in the game now that isn't in this video is the auto-panning after the user makes a word

(there's a bunch of other stuff too, like the timing mechanism, size of tiles, size of game grid, etc.., but that's more gameplay rather than mechanics)

I've been looking for a replacement to Mou for a while, and I'm excited to see Haroopad offering not only Markdown support but also a bunch of other features (especially MathJax and intelligent autocomplete). I'll definitely try it out.

I would love to see a MIDI interpreter for something like this. MIDI is already a series of note events (among other weird things like pitchbend and sustain, so it couldn't be too hard.

As someone coming from Python and Java but always dissuaded by Objective C's menacing syntax, I am 100% behind the new change.

I really enjoy this feature because it gives users who read long posts (especially on mobile) quick access to the navigation bar when they need it, but without the screen-hogging characteristic of older position:absolute nav-bars. With regards to the visual distraction, I find that I almost never scroll up unless I'm done reading. Continuously scrolling down feels natural, and in this case, the header will stay hidden regardless.