feat: reintroduce per container config

devc.sh

@@ -34,6 +34,10 @@ default_args() {
   # Mount the ssh socket to get ssh commands working.
   [ -e "$SSH_AUTH_SOCK" ] && arg "-v $SSH_AUTH_SOCK:/run/user/1000/ssh-auth-sock"
 
+  # Load custom configuration for container.
+  config_file="$script_dir/containers/$name/config.sh"
+  [ -f "${config_file}" ] && source "${config_file}"
+
   # Add a volume for the home directory so it survives
   # container updates.
   arg "-v $name:/home/user:copy"
@@ -70,6 +74,7 @@ fi
 # provided, use the last used name when possible.
 if [[ $# -gt 0 ]] && [[ ${1:-} != -* ]]; then
   name="$1"
+  mkdir -p "$script_dir/state"
   echo "$name" >"$script_dir/state/last-name"
   shift
 elif [ -f "$script_dir/state/last-name" ]; then