Thank you OP,
I used HeliOS64 for a long time until it started to get disconnected after few hours of use that that was annoying. And so I stopped using it. I have just started using Claude-code. I am missing a remote backup solution. Claude-code gave me encouragement to revive it. I got directed to https://www.armbian.com/helios64/ to download, the only issue I found was that initially my 2.5Gbe worked and then after reboot stopped. Cloud code help me get that fixed. Below is what got it working again:
# Step 1: Enable 2.5GbE (then reboot)
echo "overlays=rk3399-pcie-gen2" | sudo tee -a /boot/armbianEnv.txt
sudo reboot
# Step 2: Install driver & Tailscale
sudo apt update && sudo apt install -y build-essential dkms git linux-headers-current-rockchip64
cd /usr/src && sudo git clone https://github.com/awesometic/realtek-r8125-dkms.git r8125-9.013.02
cd r8125-9.013.02 && sudo ./dkms-install.sh
Best of luck
