From d15d2ab4b3efcded24fca892a427e21d3be04406 Mon Sep 17 00:00:00 2001
From: "RingOfStorms (Joshua Bell)" <ringofstorms@gmail.com>
Date: Sun, 30 Nov 2025 01:10:18 -0600
Subject: [PATCH] keep kde connect info on impermanence, test out power
 settings

---
 utilities/impermanence.md                     | 29 +++++++++++++++++++
 .../examples/testbed/flake.nix                |  1 +
 .../examples/testbed/impermanence.nix         |  5 +++-
 .../examples/testbed/test.nix                 |  5 ++++
 4 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 utilities/impermanence.md
 create mode 100644 utilities/nixos-installers/examples/testbed/test.nix

diff --git a/utilities/impermanence.md b/utilities/impermanence.md
new file mode 100644
index 00000000..8ecc502d
--- /dev/null
+++ b/utilities/impermanence.md
@@ -0,0 +1,29 @@
+# Impermanence
+
+
+## Look at file changes from last root
+
+```sh
+sudo mkdir -p /btrfs-top
+sudo mount -o subvolid=5 /dev/mapper/cryptroot /btrfs-top
+LATEST_SNAPSHOT=$(sudo ls -t /btrfs-top/old_roots/ | head -n 1)
+SNAPSHOT_PATH="/btrfs-top/old_roots/$LATEST_SNAPSHOT"
+echo "Comparing against snapshot: $SNAPSHOT_PATH"
+
+# Option A: rsync
+sudo rsync -rcai --delete --dry-run \
+  --exclude='/@*' \
+  --exclude='/nix' \
+  --exclude='/proc' \
+  --exclude='/sys' \
+  --exclude='/dev' \
+  --exclude='/tmp' \
+  --exclude='/boot' \
+  --exclude='/persist' \
+  --exclude='/.snapshots' \
+  --exclude='/.swap' \
+  /var/lib/ $SNAPSHOT_PATH/var/lib/
+
+# Option B: diff (Can be very noisy, but effective)
+sudo diff -qr /var/lib $SNAPSHOT_PATH/var/lib
+```
diff --git a/utilities/nixos-installers/examples/testbed/flake.nix b/utilities/nixos-installers/examples/testbed/flake.nix
index e1a5fb6b..89f7a92a 100644
--- a/utilities/nixos-installers/examples/testbed/flake.nix
+++ b/utilities/nixos-installers/examples/testbed/flake.nix
@@ -58,6 +58,7 @@
 
               ./hardware-configuration.nix
               ./impermanence.nix
+              ./test.nix
               (
                 {
                   config,
diff --git a/utilities/nixos-installers/examples/testbed/impermanence.nix b/utilities/nixos-installers/examples/testbed/impermanence.nix
index 3cbb44e7..0a4360c6 100644
--- a/utilities/nixos-installers/examples/testbed/impermanence.nix
+++ b/utilities/nixos-installers/examples/testbed/impermanence.nix
@@ -14,7 +14,7 @@
 
       "/etc/NetworkManager/system-connections"
       "/var/lib/bluetooth"
-
+      "/var/lib/fail2ban"
     ];
     files = [
       "/etc/machine-id"
@@ -28,6 +28,9 @@
         ".local/share/atuin"
 
         ".local/share/zoxide"
+
+        # KDE connect specific
+        ".config/kdeconnect"
       ];
       files = [
 
diff --git a/utilities/nixos-installers/examples/testbed/test.nix b/utilities/nixos-installers/examples/testbed/test.nix
new file mode 100644
index 00000000..ed15a31c
--- /dev/null
+++ b/utilities/nixos-installers/examples/testbed/test.nix
@@ -0,0 +1,5 @@
+{
+  powerMangement.enable = true;
+  # powerManagement.powertop.enable = true;
+  powerMangement.cpuFreqGovernor = "performance";
+}