reMarkable (1) user here since 2019, what does the software stack look like for the Supernote? The A6 looks interesting as a form factor for someone like me that uses it solely for note taking (all I want is a "non-linear notebook") rather than annotation and reading (I use a printer and scanner for annotation/feedback and an "ancient", never-online Kindle for reading books). reMarkable has always been open-ish rather than properly open, so I would hope for Supernote to be more open to the idea of users having access to code and control over their devices (even if I never connect my reMarkable to the network).
The software support is decent. Currently it's running an old version of Android that allows you to side load apps. They are supposedly working on moving the OS over to a custom Linux build, but we haven't really seen anything with that. They do release updates fairly frequently and they have a publicly viewable Trello software development board so you can see the status of features they are working on.
Supernote hasn't posted anything about the potential future Linux system. I'm personally not expecting this to actually come around.
The standard OS is derived from Android, but has no Google Play services and only supports side loading (which works well via ADB; I've not tried other app stores like FDroid). It doesn't have a lot of standard Android things like a home screen/launcher, no notifications, and no UI for switching between apps other than using the sidebar to bring up the application list and going back that way. There are no speed modes for adjusting refresh rates.
IMO, it's a great eink notepad & sketch book, and makes a good ereader with something like koreader, but it's not good as an Android tablet.
Same, the writing experience on the supernote is extremely good (most reviewers say it’s the best because it mimics writing on a stack of paper) and the parts are supposedly replaceable
