This is a MUST for any e-ink device. The Onyx Note Air 1 it's an amazing device, I love Squid ... I used a lot in my galaxy note for long years. Now I want to transfer all that data to my Onyx Boox, but it's unusable ... such a shame. Squid is the best and low latency app , in any android device.

This is even trivial to implement (for Onyx) - PNGNote is a great example: https://github.com/karino2/PngNote

It would be another huge differentiator for Squid right in line with the whole "low latency" theme.

In onyx boox note air is unusable because of lag, It would be greatley appreciated to be able to work with this app.

Absolutely Love Squid on my Samsung Galaxy Tab S3, It works BRILLIANTLY!
IMHO it is Too Cheap? at £6.00 a year or so, I would pay more.

I Have a Boox Note Air 2 and hoped Squid would work but the lag makes it unusable.
I understand Eink is a different technology and understand the limitations but if you could get it to work I would pay, I think you would do well in that emerging market..... PLEASE! and good luck guys, great product.

Onyx (the manufacturer of Boox) has an SDK for their devices: https://github.com/onyx-intl/booxsdk
They even provided an example on how to use it: https://github.com/onyx-intl/OnyxAndroidDemo

How it currently is on EPDs is unusable

I'm behind this 100%. Working with the default likebook app is fine and all, but I'd rather have a choice.

I also have a Likebook Mimas and would love to see this feature implemented. Squid developers, please don't forget about us E-Ink users!

Yes, please. The native notetaking apps work with no lag but lack the features of established notetakers like Squid. Seems to be a huge growth area for eInk devices, so the first regular Android app that caters for these will do well.

Yep. I use Squid on my Likebook Mimas as the built-in notes app has a bug that can result in lost pages, at least on firmware version 1.0.2 (current version as of posting this).

I'm hoping there would also be an option within the app to change the top bar from blue/white to white/black.

I know that low latency ink on e-readers running on Rockchip RK3368 is possible, as the built-in Likebook notes app does show that. I even opened Floating Apps (another app that provides pseudo multitasking) on top of the note editor, and watched as my pen strokes went right through the window, so it must be triggering some kind of ink mode on the EPD controller that allows the user to write with the active pen (which uses Wacom EMR, like with Samsung S Pen), and after a few seconds, the contents of that pen ink buffer (I don't think that's the correct term for it) would then be dropped onto the app below.

However, with Squid, some additional code may be required in order to flush the contents of that ink buffer before panning and/or zooming, as well as selecting, adding text, and/or drawing shapes.

What I can also mention is that the KOReader dev team was at least able to figure out how to do the screen refreshes, though.