diff --git a/dot_config/kitty/kitty.conf b/dot_config/kitty/kitty.conf
index 79aa4ab..7298140 100644
--- a/dot_config/kitty/kitty.conf
+++ b/dot_config/kitty/kitty.conf
@@ -5,3 +5,6 @@
 
 include other.conf
 include colors/gruvbox-material-dark-hard.conf
+
+// Transparency: 1.0 = opaque, lower = more see-through (needs Wayland + compositor blur)
+background_opacity 0.75
diff --git a/dot_config/topgrade/topgrade.toml b/dot_config/topgrade/topgrade.toml
index 1431b84..11419a8 100644
--- a/dot_config/topgrade/topgrade.toml
+++ b/dot_config/topgrade/topgrade.toml
@@ -32,6 +32,7 @@ repos = [
 ]
 
 [commands]
-# Bump neovim to the version pinned in update-neovim.sh. Idempotent — no-op
-# if already at target. Edit NVIM_TARGET_VERSION in the script to upgrade.
+# Debian-only (script no-ops elsewhere): apt neovim is stale, so debian
+# machines install from the pinned binary tarball. Arch uses pacman.
 "~/.local/bin/update-neovim.sh" = "neovim"
+
diff --git a/dot_local/bin/update-neovim.sh b/dot_local/bin/update-neovim.sh
index a3d8c92..a605111 100755
--- a/dot_local/bin/update-neovim.sh
+++ b/dot_local/bin/update-neovim.sh
@@ -4,12 +4,22 @@
 #
 #  Installs or upgrades neovim from the official binary tarball.
 #  Bump NVIM_TARGET_VERSION to upgrade. Topgrade calls this via
-#  ~/.config/topgrade.toml.
+#  ~/.config/topgrade/topgrade.toml.
+#
+#  Debian-only: arch gets neovim from pacman (see PACMAN_PKGS in
+#  run_once_20-install-user-packages.sh.tmpl), so this is a no-op
+#  on non-debian machines.
 #
 #  Idempotent: no-op if installed version matches target.
 # =============================================================================
 set -euo pipefail
 
+OS_ID="$(. /etc/os-release 2>/dev/null && echo "$ID" || true)"
+if [[ "$OS_ID" != "debian" ]]; then
+    echo "neovim: not debian ($OS_ID) — no action"
+    exit 0
+fi
+
 NVIM_TARGET_VERSION="v0.11.4"
 
 ARCH="$(uname -m)"
diff --git a/dot_pi/agent/settings.json.tmpl b/dot_pi/agent/settings.json.tmpl
index 357c73f..8391ecd 100644
--- a/dot_pi/agent/settings.json.tmpl
+++ b/dot_pi/agent/settings.json.tmpl
@@ -1,9 +1,9 @@
 {
-  "defaultProvider": "zai",
-  "defaultModel": "glm-5.2",
+  "defaultProvider": "miche.llama",
+  "defaultModel": "qwen38-27b-ciru-promptforge",
   "defaultThinkingLevel": "high",
   "quietStartup": true,
-  "lastChangelogVersion": "0.83.0",
+  "lastChangelogVersion": "0.84.2",
   "theme": "gruvbox-dark",
   "powerline": true,
   "footer": false,
diff --git a/run_once_20-install-user-packages.sh.tmpl b/run_once_20-install-user-packages.sh.tmpl
index 1a076f9..6da568f 100755
--- a/run_once_20-install-user-packages.sh.tmpl
+++ b/run_once_20-install-user-packages.sh.tmpl
@@ -200,9 +200,10 @@ if command -v bun >/dev/null 2>&1; then
     fi
 fi
 
-# Neovim — install official binary tarball, pinned to a known-good version.
-# Bump NVIM_TARGET_VERSION to upgrade. ~/.local/bin/update-neovim.sh does
-# the same check + download so topgrade can invoke it for upgrades.
+# Neovim — debian apt ships a stale version, so install the official
+# binary tarball, pinned to a known-good version. Bump
+# NVIM_TARGET_VERSION here and in ~/.local/bin/update-neovim.sh to
+# upgrade (topgrade runs the script on debian machines).
 NVIM_TARGET_VERSION="v0.11.4"
 ARCH="$(uname -m)"
 case "$ARCH" in