From 59bf2b170413c1e17cbdc909c44e14a6476b3fca Mon Sep 17 00:00:00 2001
From: Mikael Voss <mvs@nyantec.com>
Date: Thu, 31 Oct 2024 15:38:06 +0100
Subject: [PATCH] Create initial system config for casper

---
 nixos/config/casper.nix |  9 +++++++++
 nixos/module/magi.nix   | 25 ++++++++++++++++++++-----
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/nixos/config/casper.nix b/nixos/config/casper.nix
index 622e5e4..d795d69 100644
--- a/nixos/config/casper.nix
+++ b/nixos/config/casper.nix
@@ -1,3 +1,12 @@
 { self, ... }: { lib, config, pkgs, ... }: {
   imports = with self.nixosModules; [ magi ];
+
+  ephemeral = {
+    enable = true;
+    device = "UUID=545bcd08-9f1a-4f42-b85e-93c47d496ac3";
+    boot = {
+      device = "UUID=A5AE-22E8";
+      fsType = "vfat";
+    };
+  };
 }
diff --git a/nixos/module/magi.nix b/nixos/module/magi.nix
index 6d9e678..d80e6a1 100644
--- a/nixos/module/magi.nix
+++ b/nixos/module/magi.nix
@@ -1,10 +1,20 @@
 { self, ... }: { lib, config, pkgs, ... }: {
   imports = with self.nixosModules; [
     default
+    headless
     mimalloc
     physical
   ];
 
+  boot.binfmt = {
+    emulatedSystems = [ "aarch64-linux" "riscv64-linux" ];
+    preferStaticEmulators = true;
+  };
+
+  boot.kernelParams = [
+    "hugepagesz=1G" "hugepages=16"
+  ];
+
   boot.kernelPackages = let
     inherit (self.packages.x86_64-linux) linux-hardened;
   in pkgs.linuxPackagesFor (linux-hardened.override {
@@ -38,6 +48,10 @@
         SATA_MOBILE_LPM_POLICY = 1;
         ATA_SFF = false;
 
+        BLK_DEV_MD = true;
+        MD_AUTODETECT = true;
+        MD_RAID1 = true;
+
         BNXT = true;
         BNXT_FLOWER_OFFLOAD = true;
         BNXT_HWMON = true;
@@ -89,11 +103,12 @@
       });
   });
 
-  ephemeral = {
-    device = "nodev";
-    boot = {
-      device = "nodev";
-      fsType = "vfat";
+  hardware.nitrokey.enable = true;
+
+  nix = {
+    settings = {
+      system-features = [ "nixos-test" "benchmark" "big-parallel" "kvm" ]
+        ++ (map (arch: "gccarch-${arch}") (lib.systems.inferiors.znver2 ++ [ "rv64imac" "rv64imacfd" "rv64gc" "armv8-a" ]));
     };
   };
 }