Most of this has been included in Proxmox 8.1 and above. Even Dark Mode.
Proxmox is a Open Source Alternative to popular hypervisors such as VMWare and Hyper-V.
This will help setup the open source community version and install a dark theme as well.
Follow the offical Proxmox bare metal installation guide below https://www.proxmox.com/en/proxmox-ve/get-started
Run the following command turn off the license warning message and install dark mode
Download and Run community_setup.sh
wget https://raw.githubusercontent.com/dereklarmstrong/proxmox/main/scripts/community_setup.sh
bash community_setup.sh
You can use the following command to help setup a cloud init deployment image
Download and run setup help for the first cloud init image
wget https://raw.githubusercontent.com/dereklarmstrong/proxmox/main/scripts/setup_cloud_init_image.sh
bash setup_cloud_init_image.sh
This sets up the basic configs from a base proxmox install This is a work in progress and is not complete
use at your own risk
wget https://raw.githubusercontent.com/dereklarmstrong/proxmox/main/scripts/default_setup.sh
bash default_setup.sh