fix: suzu

modules/nixos/base/zram.nix

@@ -0,0 +1,20 @@
+{
+  # Enable in-memory compressed devices and swap space provided by the zram kernel module.
+  # By enable this, we can store more data in memory instead of fallback to disk-based swap devices directly,
+  # and thus improve I/O performance when we have a lot of memory.
+  #
+  #   https://www.kernel.org/doc/Documentation/blockdev/zram.txt
+  zramSwap = {
+    enable = true;
+    # one of "lzo", "lz4", "zstd"
+    algorithm = "zstd";
+    # Priority of the zram swap devices.
+    # It should be a number higher than the priority of your disk-based swap devices
+    # (so that the system will fill the zram swap devices before falling back to disk swap).
+    priority = 5;
+    # Maximum total amount of memory that can be stored in the zram swap devices (as a percentage of your total memory).
+    # Defaults to 1/2 of your total RAM. Run zramctl to check how good memory is compressed.
+    # This doesn’t define how much memory will be used by the zram swap devices.
+    memoryPercent = 50;
+  };
+}