More minimization work

modules/generic.nix

@@ -9,6 +9,7 @@
   boot = {
     enableContainers = false;
     initrd.systemd.enable = true;
+    initrd.compressor = "zstd";
     kernelParams = [
       "console=ttyS0"
     ];

modules/minimize.nix

@@ -7,11 +7,12 @@
   nix.enable = false;
   system.disableInstallerTools = true;
   system.etc.overlay.enable = true;
-
   systemd.sysusers.enable = true;
 
   programs.less.lessopen = null;
   programs.command-not-found.enable = false;
 
   environment.defaultPackages = [ ];
+
+  security.sudo.enable = false;
 }

modules/partitions.nix

@@ -21,10 +21,13 @@
 
       mkfsOptions = {
         erofs = [
-          "-zzstd,6" # Zstd compression
+          # "-zzstd,6" # Zstd compression
+          # "-zlz4hc,12"
           "-T0" # Fixed timestamp for all files
-          "-C65536" # 64 KiB cluster size
-          # "-Efragments,dedupe,ztailpacking" # Extra features
+          "-C262144" # 256 KiB cluster size
+          # "-C65536" # 64 KiB cluster size
+          # "-C1048576" # 1 MiB cluster size
+          "-Efragments,dedupe,ztailpacking" # Extra features
         ];
       };