That's the goal, Thanks.

Are there any quirks for local transfer of .mobi files to Remarkable? hntoebook just requires a path to put the files, I haven't implemented any USB mass storage protocol.

Do let me know if HN To E-Book works out, when you find some time for it.

Edit: I previously mentioned Kindle taking its own time to show the files after transfer, It was my bad (I had a filter set to show docs). Files are shown instantaneous and the new Kindle OS is very responsive.

Remarkable has only experimental and clunky USB support. It wants to connect to the cloud via wifi but it is also possible to connect to it via wifi in a local network not connected to the internet. From there you connect via ssh/scp (and you have root access)

As a person who skimmed over this, has a Remarkable and is interested, I'd just convert the mobi to epub (e.g. open-source Calibre has a way to fo it) and then send the files via scp to Remarkable. It doesn't seem to difficult to do for someone who knows their way around. Maybe it's difficult to automate, especially the sending part

I believe someone ran syncthing on a Remarkable. That could be used to move files from local/server to RM.

I would send PDF. I believe epubs are actually converted to pdf on device.

That's unfortunate, Although converting to epub shouldn't be an issue with hntoebook as I already use calibre.

TBH Kindle still allowing files to be transferred like any flash storage is surprising, expected it go iTuney way long back. I hope reMarkable gets USB storage done soon.

I thought reMarkable only takes ePub and PDF?

You can read mobi using Koreader.