This is now a community supported build. The device tree is not in armbian's repo by now. Edit rk3588-hinlink-h88k.dts to modify the device tree.
Current device tree support status:
- 2.5G ethernet
- M.2 E key
- TF Card
- M.2 M key sata
- PCIE3X4
- USB
Download: https://github.com/gurongsheng/armbian-h88k-images/releases/latest