From ff9eb3b6facd8818dbc7b67263c9ee63d573cfcc Mon Sep 17 00:00:00 2001
From: William <baduhai@proton.me>
Date: Sun, 3 Aug 2025 20:44:23 -0300
Subject: [PATCH] ephermal systemd unit is now for host agnostic; moved io to
 disko disk management

---
 hosts/modules/ephermal.nix                  |  64 +++++++++
 hosts/modules/io/ephermal.nix               |  44 -------
 hosts/modules/io/hardware-configuration.nix | 139 +++++++++++++-------
 hosts/modules/rotterdam/ephermal.nix        |  45 -------
 4 files changed, 152 insertions(+), 140 deletions(-)
 create mode 100644 hosts/modules/ephermal.nix
 delete mode 100644 hosts/modules/io/ephermal.nix
 delete mode 100644 hosts/modules/rotterdam/ephermal.nix

diff --git a/hosts/modules/ephermal.nix b/hosts/modules/ephermal.nix
new file mode 100644
index 0000000..ff22557
--- /dev/null
+++ b/hosts/modules/ephermal.nix
@@ -0,0 +1,64 @@
+{
+  hostType,
+  lib,
+  ...
+}:
+
+{
+  config = lib.mkMerge [
+    # Common configuration
+    {
+    }
+
+    # Server specific configuration
+    (lib.mkIf hostType.isServer {
+    })
+
+    # Workstation specific configuration
+    (lib.mkIf hostType.isWorkstation {
+      boot.initrd.systemd.services.recreate-root = {
+        description = "Rolling over and creating new filesystem root";
+        requires = [ "initrd-root-device.target" ];
+        after = [
+          "local-fs-pre.target"
+          "initrd-root-device.target"
+        ];
+        requiredBy = [ "initrd-root-fs.target" ];
+        before = [ "sysroot.mount" ];
+        unitConfig = {
+          AssertPathExists = "/etc/initrd-release";
+          DefaultDependencies = false;
+        };
+        serviceConfig = {
+          Type = "oneshot";
+          RemainAfterExit = true;
+        };
+        script = ''
+          mkdir /btrfs_tmp
+          mount /dev/mapper/cryptroot /btrfs_tmp
+
+          if [[ -e /btrfs_tmp/@root ]]; then
+            mkdir -p /btrfs_tmp/old_roots
+            timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/@root)" "+%Y-%m-%-d_%H:%M:%S")
+            mv /btrfs_tmp/@root "/btrfs_tmp/old_roots/$timestamp"
+          fi
+
+          delete_subvolume_recursively() {
+            IFS=$'\n'
+            for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+               delete_subvolume_recursively "/btrfs_tmp/$i"
+            done
+            btrfs subvolume delete "$1"
+          }
+
+          for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+            delete_subvolume_recursively "$i"
+          done
+
+          btrfs subvolume create /btrfs_tmp/@root
+          umount /btrfs_tmp
+        '';
+      };
+    })
+  ];
+}
diff --git a/hosts/modules/io/ephermal.nix b/hosts/modules/io/ephermal.nix
deleted file mode 100644
index 9ab97f2..0000000
--- a/hosts/modules/io/ephermal.nix
+++ /dev/null
@@ -1,44 +0,0 @@
-{
-  boot.initrd.systemd.services.recreate-root = {
-    description = "Rolling over and creating new filesystem root";
-    requires = [ "initrd-root-device.target" ];
-    after = [
-      "local-fs-pre.target"
-      "initrd-root-device.target"
-    ];
-    requiredBy = [ "initrd-root-fs.target" ];
-    before = [ "sysroot.mount" ];
-    unitConfig = {
-      AssertPathExists = "/etc/initrd-release";
-      DefaultDependencies = false;
-    };
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-    };
-    script = ''
-      mkdir /btrfs_tmp
-      mount /dev/disk/by-uuid/3638cea6-5503-43cc-aa4f-3d37ebedad2f /btrfs_tmp
-      if [[ -e /btrfs_tmp/@root ]]; then
-        mkdir -p /btrfs_tmp/old_roots
-        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/@root)" "+%Y-%m-%-d_%H:%M:%S")
-        mv /btrfs_tmp/@root "/btrfs_tmp/old_roots/$timestamp"
-      fi
-
-      delete_subvolume_recursively() {
-        IFS=$'\n'
-        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
-          delete_subvolume_recursively "/btrfs_tmp/$i"
-        done
-        btrfs subvolume delete "$1"
-      }
-
-      for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
-        delete_subvolume_recursively "$i"
-      done
-
-      btrfs subvolume create /btrfs_tmp/@root
-      umount /btrfs_tmp
-    '';
-  };
-}
diff --git a/hosts/modules/io/hardware-configuration.nix b/hosts/modules/io/hardware-configuration.nix
index 020240f..7d73811 100644
--- a/hosts/modules/io/hardware-configuration.nix
+++ b/hosts/modules/io/hardware-configuration.nix
@@ -17,59 +17,10 @@
         "sd_mod"
         "sdhci_pci"
       ];
-      luks.devices."enc" = {
-        device = "/dev/disk/by-uuid/8018720e-42dd-453c-b374-adaa02eb48c9";
-        keyFile = "/dev/disk/by-partuuid/cbc7e305-d32d-4250-b6ae-6a8264ea096e";
-      };
     };
     kernelModules = [ "kvm-intel" ];
-  };
-
-  fileSystems = {
-    "/" = {
-      device = "/dev/disk/by-uuid/3638cea6-5503-43cc-aa4f-3d37ebedad2f";
-      fsType = "btrfs";
-      options = [
-        "subvol=@root"
-        "noatime"
-        "compress=zstd"
-      ];
-    };
-    "/home" = {
-      device = "/dev/disk/by-uuid/3638cea6-5503-43cc-aa4f-3d37ebedad2f";
-      fsType = "btrfs";
-      options = [
-        "subvol=@home"
-        "noatime"
-        "compress=zstd"
-      ];
-    };
-    "/nix" = {
-      device = "/dev/disk/by-uuid/3638cea6-5503-43cc-aa4f-3d37ebedad2f";
-      fsType = "btrfs";
-      options = [
-        "subvol=@nix"
-        "noatime"
-        "compress=zstd"
-      ];
-    };
-    "/persistent" = {
-      device = "/dev/disk/by-uuid/3638cea6-5503-43cc-aa4f-3d37ebedad2f";
-      fsType = "btrfs";
-      options = [
-        "subvol=@persistent"
-        "noatime"
-        "compress=zstd"
-      ];
-    };
-    "/boot/efi" = {
-      device = "/dev/disk/by-uuid/31C9-08FF";
-      fsType = "vfat";
-      options = [
-        "noatime"
-        "fmask=0077"
-        "dmask=0077"
-      ];
+    luks.devices.cryptroot = {
+      device = "/dev/mmcblk1p3";
     };
   };
 
@@ -85,4 +36,90 @@
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
 
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/mmcblk1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              name = "ESP";
+              start = "1MiB";
+              end = "1GiB";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot/efi";
+                mountOptions = [
+                  "noatime"
+                  "fmask=0077"
+                  "dmask=0077"
+                ];
+              };
+            };
+            swap = {
+              priority = 2;
+              name = "swap";
+              size = "12G";
+              content = {
+                type = "swap";
+              };
+            };
+            cryptroot = {
+              priority = 3;
+              name = "root";
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "cryptroot";
+                content = {
+                  type = "btrfs";
+                  extraArgs = [ "-f" ];
+                  subvolumes = {
+                    "@root" = {
+                      mountpoint = "/";
+                      mountOptions = [
+                        "noatime"
+                        "compress=zstd"
+                        "subvol=@root"
+                      ];
+                    };
+                    "@home" = {
+                      mountpoint = "/home";
+                      mountOptions = [
+                        "noatime"
+                        "compress=zstd"
+                        "subvol=@home"
+                      ];
+                    };
+                    "@nix" = {
+                      mountpoint = "/nix";
+                      mountOptions = [
+                        "noatime"
+                        "compress=zstd"
+                        "subvol=@nix"
+                      ];
+                    };
+                    "@persistent" = {
+                      mountpoint = "/persistent";
+                      mountOptions = [
+                        "noatime"
+                        "compress=zstd"
+                        "subvol=@persistent"
+                      ];
+                    };
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
 }
diff --git a/hosts/modules/rotterdam/ephermal.nix b/hosts/modules/rotterdam/ephermal.nix
deleted file mode 100644
index 8e9c708..0000000
--- a/hosts/modules/rotterdam/ephermal.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  boot.initrd.systemd.services.recreate-root = {
-    description = "Rolling over and creating new filesystem root";
-    requires = [ "initrd-root-device.target" ];
-    after = [
-      "local-fs-pre.target"
-      "initrd-root-device.target"
-    ];
-    requiredBy = [ "initrd-root-fs.target" ];
-    before = [ "sysroot.mount" ];
-    unitConfig = {
-      AssertPathExists = "/etc/initrd-release";
-      DefaultDependencies = false;
-    };
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-    };
-    script = ''
-      mkdir /btrfs_tmp
-      mount /dev/disk/by-uuid/3287dbc3-c0fa-4096-a0b3-59b017cfecc8 /btrfs_tmp
-
-      if [[ -e /btrfs_tmp/@root ]]; then
-        mkdir -p /btrfs_tmp/old_roots
-        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/@root)" "+%Y-%m-%-d_%H:%M:%S")
-        mv /btrfs_tmp/@root "/btrfs_tmp/old_roots/$timestamp"
-      fi
-
-      delete_subvolume_recursively() {
-        IFS=$'\n'
-        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
-           delete_subvolume_recursively "/btrfs_tmp/$i"
-        done
-        btrfs subvolume delete "$1"
-      }
-
-      for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
-        delete_subvolume_recursively "$i"
-      done
-
-      btrfs subvolume create /btrfs_tmp/@root
-      umount /btrfs_tmp
-    '';
-  };
-}