FUTO Swipe supports ClearFlow, which is exactly what you are talking about, a keyboard layout optimized for swiping: https://clearflowkeyboard.github.io/
https://github.com/futo-org/futo-keyboard-layouts/issues/163
https://github.com/futo-org/futo-keyboard-layouts/issues/163
I'm happy with the switch. Like any keyboard switch (I've gone from Qwerty to Dvorak and now a Colemak-dh derivative with about ten years on each) it takes some time to learn the layout. Overall I'm happy with it though and there are less frustrating misinterpretations and corrections needed.
This post was swiped on it with only two corrections and the second one was my fault as i misremembered a key location.
[1]: https://clearflowkeyboard.github.io/#section_activate [2]: https://youtu.be/rSfbvE9cEKE?si=NbJC93sTiOHqw4lX
I'm writing down a few impressions: - the layout is unusual, but I get the motivation. Distances are minimised and letters are arranged so that ambiguity is removed. - although I'm very slow, I haven't made a single mistake so far. Clearflow allows me to swipe much more accurately than stock gboard. - the square keyboard layout unfortunately means that half the letters are constantly hidden behind my thumb. As I'm unfamiliar with the layout, this means that before swiping a word, I have to look at the layout, memorise letter locations and plan the movement - since I write in multiple languages and Clearflow is available in only one of them, I would have to memorise a completely new layout for a language I write in only half the time.
For learning ClearFlow, I used the Games app available from the "Clearflow Games" section on their website: https://clearflowkeyboard.github.io/
I also have the issue of the thumb getting in the way so I spent a couple of days playing the games to get my layout memory up and then it became usable without frustration and I'm not looking back now although I occasionally still forget the odd letter location.
It's one of those things I've been wanting for a decade now, sounds like it's been around for about a year and a half.
Man, this is the kind of stuff I come to HN for.
EDIT: Ugh! I have an iPhone, and FUTO is Android-only, and ClearFlow is only available in the Android Gboard, not the iOS Gboard. :(
It could be interesting for applying it to different languages (or modified word corpus).
Maybe I'm mistaken though. Are there any physical clearflow keyboards? Are they any good, or does clearflow really only work well with swipe?
1. Switching to Dvorak on my computer AND 2. Switching to Colemak on my phone
I already had a feeling that my Dvorak experience on phone wasn't gonna help typing in a physical keyboard and indeed that was the case. But also, the physical keyboard experience with Colemak didn't really help with thumb typing/swiping on the phone. On a physical keyboard, I can only type QWERTY at around 30WPM and Colemak at around 130WPM. However, on the phone QWERTY is my strongest layout (even when I can only type at around 50WPM with it).
Then there's the design philosophy. Colemak aggressively keeps the most used letters on the homerow. Paste a random Wikipedia article into this page and you'll see (https://www.patrick-wied.at/projects/heatmap-keyboard/ alternatively, here's the heatmap for the introduction to today's featured article about Augustus: https://postimg.cc/9RT8P4N6). On a phone this means that a lot of the times you'll be swiping back and forth horizontally. Resulting in identical swipe paths for a lot of common words.
And if Clearflow was ported to a physical keyboard, most of your fingers won't be doing any work and the active fingers will be doing weird tap dance. The position of spacebar (undoubtedly the most used key on the keyboard) to the sides where you'd be using your pinky would make it an RSI machine.
My point is that if you're comfortable with QWERTY on the phone, that's not because you're comfortable with QWERTY on the desktop. That's because you got used to QWERTY on the phone.