If you want to start using the community firmware please visit https://synthstromaudible.github.io/DelugeFirmware/ for all relevant details.
The Deluge from Synthstrom Audible is a portable sequencer, synthesizer and sampler. Synthstrom Audible decided to open source the firmware application that runs on the Deluge to allow the community to customize and extend the capabilities of the device.
The hardware is built around a Renesas RZ/A1L processor with an Arm® Cortex®-A9 core running at 400MHz and 3MB of on-chip SRAM. Connected to that is a 64MB SDRAM chip, a PIC for button handling and either a 7-Segment array or an OLED screen. The application is written in C and C++ and some occasional assembly in bare metal style without an operating system.