Hi!
This is William of Inphonik.
We’re so impressed by Brad’s solution that can run VSTs into his S2400 
The latest Linux version of our RX950 contains the working Aarch64 build.
Here’s what to copy from the RX950 Linux zip archive to the S2400 SD Card:
I’m sending updated download links to our users who have reached us on our support email. If you need help in getting your download link, please drop a mail at support [at] inphonik [dot] com
As for the buy button issue on our RX950 product page, we’re working on it.
Here are direct buy links in the meantime:
Buy the RX950 in EUR: https://sowl.co/c7lQe
Buy the RX950 in USD: https://sowl.co/beVzSW
One last thing: the RX950 sold on Plugin Boutique is a special version that integrates into their Beatport Studio subscription. If you want an up-to-date, DRM-free installer, ordering directly from us is better.
Our other effect plug-in, the PCM2612, is not ready yet. We have to compile the Aarch64 build. I’ll let you know!
Thanks!
William