Limit the number of boot entries

to avoid /boot to go out of disk space.

hosts/aragorn/default.nix

@@ -23,13 +23,7 @@
   # Being fancy. Other people have already taken care of all the tough setting-up parts :)
   boot.plymouth = {
     enable = true;
-    logo = pkgs.fetchurl {
-      url = "https://github.com/NixOS/nixos-artwork/raw/master/logo/nixos.svg.png";
-      hash = "sha256-9+OfqfP5LmubdTcwBkS/AnOX4wZI2tKHLu5nhi43xcc=";
-    };
-    extraConfig = ''
-      DeviceScale=2
-    '';
+    logo = "${pkgs.nixos-icons}/share/icons/hicolor/72x72/apps/nix-snowflake.png";
   };
 
   # Most valuable directories (.e.g /home, /gnu, /nix) are persisted using ZFS datasets.

hosts/aragorn/hardware.nix

@@ -11,6 +11,7 @@
   # Use the systemd-boot EFI boot loader.
   boot.loader.efi.canTouchEfiVariables = true;
   boot.loader.systemd-boot.enable = true;
+  boot.loader.systemd-boot.configurationLimit = 10; # prevent /boot to go out of disk space
 
   # Necessary ~~evils~~ binary blobs
   # Ref: https://github.com/NixOS/nixos-hardware/tree/master/common/{cpu,gpu}/amd