Nano Pi R5C RK3568 (ARM64)

Greetings!

I created an sd-card image for installing Slarm64 onto a Nano Pi R5C RK3568 found here https://source.inpito.org/slackish-images/ .  I tried to use Github but they had a 25MB limit.

My Nano Pi R5C kernel source is a fork of the OpenWRT kernel source to get the wifi working on a 5.15 kernel as the Nano Pi company's own "FriendlyWRT" is also a fork of the OpenWRT kernel source.  I modified the kernel to work with a Slack(ish) installer and used it to install Slarm64 onto a USB attached pocket drive.

Rather than install the Slarm64 OS from the sd-card directly, I used dd if=sd-card of=emmc and copied the installer to the emmc.  I edited the extlinux.conf from mmcblk0p2 to mmcblk1p2.  Then rebooted without the sd-card and the Slack(ish) installer booted successfully.  I then installed the OS from the emmc.  The emmc is 32Gib, so it can handle the sd-card image with room to spare.

I installed the full Slarm64-15.0 operating system with all packages to the USB attached pocket drive, and it all installed and worked successfully ( although the screen was greyscale with no color )

After the install completed, but before I rebooted:
I mounted the emmc boot partition and change the extlinux.conf default from INSTALLER to SYSTEM.  If the OS is installed to a block device other than an attached USB pocket drive /dev/sda2 the block device will have to be changed as well.

After the reboot into the Slarm64 operating system on /dev/sda2, I attached the emmc once again and installed all the patches, only to discover the latest firmware broke the wifi, so I removepkg the latest firmware and re-installed the original OS firmware and the wifi was restored.

Nano Pi R5C RK3568 Hardware Spec
    SoC: Rockchip RK3568B2
        CPU: Quad-core ARM Cortex-A55 CPU, up to 2.0GHz
        GPU: Mali-G52 1-Core-2EE，supports OpenGL ES 1.1, 2.0, and 3.2, Vulkan 1.0 and 1.1, OpenCL 2.0 Full Profile
        VPU: 4KP60 H.265/H.264/VP9 video decoder, 1080P60 H.264/H.265 video encoder
        NPU: Support 0.8T
    RAM: 4GB LPDDR4X
    Flash: 32GB eMMC
    Ethernet: two PCIe 2.5Gbps Ethernet
    USB: two USB 3.2 Gen 1 Type-A ports
    HDMI:
        support HDMI1.4 and HDMI2.0 operation
        support up to 10 bits Deep Color modes
        support up to 1080p@120Hz and 4096x2304@60Hz
        support 3-D video formats
    M.2 Key E: PCIe2.1 x1, USB 2.0 x1, supports M.2 WiFi and Bluetooth Module.
    microSD: support UHS-I
    Debug: one Debug UART, 3 Pin 2.54mm header, 3.3V level, 1500000bps
    LEDs: 4 x GPIO Controlled LED (SYS, WAN, LAN, WL)
    others:
        2 Pin 1.27/1.25mm RTC battery input connector for low power RTC IC HYM8563TS
        MASK button for eMMC update
        One User button 
    Power supply: USB-C 5V input
    PCB: 8 Layer, 58x58x1.6mm
    Ambient Operating Temperature: 0℃ to 70℃