simplify borg server module

modules/borg/server.nix

@@ -45,13 +45,10 @@ in
   };
 
   config = mkIf cfg.enable {
-    # Install required packages
     environment.systemPackages = [ pkgs.borgbackup pkgs.openssh ];
 
-    # Create borg-server group
     users.groups.borg-server = {};
 
-    # Create a system user for each borg user
     users.users = mapAttrs (username: userCfg: {
       isSystemUser = true;
       group = "borg-server";
@@ -59,29 +56,25 @@ in
       createHome = true;
       shell = pkgs.bash;
       description = "Borg backup user ${username}";
-      openssh.authorizedKeys.keys = map (key: 
+      openssh.authorizedKeys.keys = map (key:
         "command=\"borg serve --restrict-to-path ${cfg.dataDir}/${username}\",restrict ${key}"
       ) userCfg.publicKeys;
     }) cfg.users;
 
-    # Ensure proper permissions on data directory
     systemd.tmpfiles.rules = [
       "d ${cfg.dataDir} 0755 root borg-server -"
-    ] ++ (mapAttrsToList (username: _: 
+    ] ++ (mapAttrsToList (username: _:
       "d ${cfg.dataDir}/${username} 0700 ${username} borg-server -"
     ) cfg.users);
 
-    # Configure SSH for borg access
     services.openssh = {
       enable = true;
       ports = [ cfg.sshPort ];
       settings = {
-        # Keep connection alive settings
         ClientAliveInterval = 10;
         ClientAliveCountMax = 30;
       };
       extraConfig = ''
-        # SSH hardening for borg users
         Match Group borg-server
           PasswordAuthentication no
           PubkeyAuthentication yes
@@ -92,81 +85,13 @@ in
       '';
     };
 
-    # Open firewall port
     networking.firewall.allowedTCPPorts = mkIf (cfg.sshPort != 22) [ cfg.sshPort ];
 
-    # Create convenience scripts and aliases
     environment.shellAliases = {
       borg-server-status = "systemctl status sshd";
       borg-server-users = "ls -la ${cfg.dataDir}";
       borg-server-logs = "journalctl -u sshd -f";
+      borg-server-check = "f() { sudo -u \"$1\" borg info \"${cfg.dataDir}/$1/$2\"; }; f";
     };
-
-    # Create a helper script for adding new users
-    environment.etc."borg-server/add-user.sh" = {
-      text = ''
-        set -e
-        
-        if [ $# -lt 2 ]; then
-          echo "Usage: $0 <username> <ssh-public-key>"
-          echo "Example: $0 alice 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGxyz...'"
-          exit 1
-        fi
-        
-        USERNAME="$1"
-        SSH_KEY="$2"
-        USER_DIR="${cfg.dataDir}/$USERNAME"
-        
-        echo "To add user '$USERNAME', add the following to your NixOS configuration:"
-        echo ""
-        echo "services.borg-server-custom.users.$USERNAME = {"
-        echo "  publicKeys = [ \"$SSH_KEY\" ];"
-        echo "};"
-        echo ""
-        echo "Then rebuild your system with: nixos-rebuild switch"
-      '';
-      mode = "0755";
-    };
-
-    # Create a helper script for checking repository info
-    environment.etc."borg-server/check-repo.sh" = {
-      text = ''
-        set -e
-        
-        if [ $# -lt 1 ]; then
-          echo "Usage: $0 <username> [repository]"
-          echo "Example: $0 alice"
-          echo "Example: $0 alice main-repo"
-          exit 1
-        fi
-        
-        USERNAME="$1"
-        REPO_NAME="''${2:-}"
-        USER_DIR="${cfg.dataDir}/$USERNAME"
-        
-        if [ ! -d "$USER_DIR" ]; then
-          echo "User directory $USER_DIR does not exist"
-          exit 1
-        fi
-        
-        if [ -n "$REPO_NAME" ]; then
-          REPO_PATH="$USER_DIR/$REPO_NAME"
-        else
-          echo "Repositories for user $USERNAME:"
-          ls -la "$USER_DIR"
-          exit 0
-        fi
-        
-        if [ -d "$REPO_PATH" ]; then
-          echo "Repository info for $USERNAME/$REPO_NAME:"
-          sudo -u "$USERNAME" borg info "$REPO_PATH"
-        else
-          echo "Repository $REPO_PATH does not exist"
-          exit 1
-        fi
-      '';
-      mode = "0755";
-    };
-
   };
 }