terra: add Ryzen 9 5900X desktop (Hyprland, tailnet, dev tools)

Replaces CachyOS on the OS SSD (Kingston SA400, disko-managed). Dev-data disks (sdc ext4 /mnt/hdd_01, LVM vg_ssd /mnt/ssd_01) stay out of disko and are mounted as plain filesystems so they're never wiped. Desktop split into services/desktop/desktop-hyprland.nix (session: compositor, greeter, audio, portals) and desktop-apps.nix (things darman actually launches, including claude-code — allowlisted alongside the other unfree desktop apps).
2026-07-23 23:14:36 +02:00
parent c86e8a19c4
commit 67b12cb96b
10 changed files with 347 additions and 0 deletions
@@ -0,0 +1,42 @@
+{ ... }:
+
+# Declarative OS-disk layout (disko). UEFI: GPT with an ESP + ext4 root.
+# disko both PARTITIONS/FORMATS this disk and generates the NixOS
+# `fileSystems.*` entries, so hardware-configuration.nix must NOT define
+# fileSystems for "/" or "/boot".
+#
+# ⚠️  This disk is WIPED on install. This is the Kingston SA400 SSD that
+#     currently holds CachyOS (btrfs root+subvols on sdb2, ESP on sdb1).
+#     The dev-data disks (sdc ext4 /mnt/hdd_01, LVM vg_ssd /mnt/ssd_01) and the
+#     leftover ntfs disks (sda, sdf, nvme0n1) are NOT listed here — they are
+#     mounted as plain fileSystems in configuration.nix (or, for the ntfs
+#     disks, ignored entirely) so they are never touched.
+{
+  disko.devices.disk.os = {
+    type = "disk";
+    device = "/dev/disk/by-id/ata-KINGSTON_SA400S37480G_50026B738072F6C6";
+    content = {
+      type = "gpt";
+      partitions = {
+        ESP = {
+          size = "512M";
+          type = "EF00";
+          content = {
+            type = "filesystem";
+            format = "vfat";
+            mountpoint = "/boot";
+            mountOptions = [ "umask=0077" ];
+          };
+        };
+        root = {
+          size = "100%";
+          content = {
+            type = "filesystem";
+            format = "ext4";
+            mountpoint = "/";
+          };
+        };
+      };
+    };
+  };
+}