proxmox ve tools script(debian9+ can use it).Including email, samba, NFS set zfs max ram, nested virtualization ,docker , pci passthrough etc. for english user,please look the end of readme.
GNU/Linux 一键更换国内软件源脚本
通用PVE集成软路由，KODI，基于LXC的Docker服务教程
openwrt