proxmox-vm-lvm-minimal: Use a simple guix-home for root users

* .guix/rekahsoft/guix-config/proxmox-vm-lvm-minimal.scm: Use a simple guix-home for the root
user (matching my personal user)
* user-config/zsh/.zshrc: Adjusted zsh compinstall path (effectively a no-op as .zshrc is
managed via guix-home)

.guix/rekahsoft/guix-config/proxmox-vm-lvm-minimal.scm

@@ -88,7 +88,8 @@ mail.*                                 -/var/log/maillog
 (define %proxmox-vm-lvm-minimal-services
   (append
      (list (service guix-home-service-type
-                  `(("collin" ,%home)))
+                  `(("collin" ,%home)
+                    ("root" ,%home)))
            (service openssh-service-type
 		    (openssh-configuration
 		     (password-authentication? #f)

user-config/zsh/.zshrc

@@ -18,7 +18,7 @@ zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
 zstyle ':completion:*' matcher-list '' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]}' 'r:|[._-/,+]=** r:|=**' 'l:|=* r:|=*'
 zstyle ':completion:*' max-errors 5
 zstyle ':completion:*' preserve-prefix '//[^/]##/'
-zstyle :compinstall filename '/home/collin/.zshrc'
+zstyle :compinstall filename "${HOME}/.config/zsh/.zshrc"
 
 autoload -Uz compinit
 compinit