diff --git a/AGENTS.md b/AGENTS.md
index d90046f1..6abcc44b 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -188,6 +188,6 @@ New migration format:
 - Use `$OMARCHY_PATH` to reference the omarchy directory
 - Prefer helper commands such as `omarchy-cmd-present`, `omarchy-cmd-missing`, `omarchy-pkg-present`, and `omarchy-pkg-missing`
 
-Omarchy 4.0 is upgraded through `bin/omarchy-upgrade-to-4`, not through the normal migration runner. Do not add compatibility migrations for old installer layouts; put pre-4 package-layout transition work in the upgrade command instead.
+Omarchy 4.0 is upgraded through `bin/omarchy-upgrade-to-quattro`, not through the normal migration runner. Do not add compatibility migrations for old installer layouts; put pre-4 package-layout transition work in the upgrade command instead.
 
 Migrations may use raw `pacman`, `command -v`, or direct config edits when needed for one-off repair work.
diff --git a/bin/omarchy-upgrade-to-4 b/bin/omarchy-upgrade-to-quattro
similarity index 98%
rename from bin/omarchy-upgrade-to-4
rename to bin/omarchy-upgrade-to-quattro
index a7c62183..65d0ccad 100755
--- a/bin/omarchy-upgrade-to-4
+++ b/bin/omarchy-upgrade-to-quattro
@@ -2,14 +2,14 @@
 
 # omarchy:summary=Upgrade a legacy Omarchy install to the package-backed Omarchy 4 layout.
 # omarchy:args=[--yes] [--reboot] [--dev] [--channel stable|rc|edge] [--user USER]
-# omarchy:examples=omarchy upgrade to 4 | omarchy upgrade to 4 --dev
+# omarchy:examples=omarchy upgrade to quattro | omarchy upgrade to quattro --dev
 # omarchy:requires-sudo=true
 
 set -euo pipefail
 
 usage() {
   cat <<'USAGE'
-Usage: omarchy-upgrade-to-4 [--yes] [--reboot] [--dev] [--channel stable|rc|edge] [--user USER]
+Usage: omarchy-upgrade-to-quattro [--yes] [--reboot] [--dev] [--channel stable|rc|edge] [--user USER]
 
 Upgrade any pre-4 Omarchy install to the package-backed Omarchy 4 layout.
 This script is intentionally self-contained so it can be shipped as a command
@@ -342,7 +342,7 @@ configure_pacman_channel() {
 
   as_root install -d -m 0755 /etc/pacman.d
   if [[ -f /etc/pacman.d/mirrorlist ]]; then
-    as_root cp -f /etc/pacman.d/mirrorlist "/etc/pacman.d/mirrorlist.omarchy-upgrade-to-4.$backup_suffix.bak"
+    as_root cp -f /etc/pacman.d/mirrorlist "/etc/pacman.d/mirrorlist.omarchy-upgrade-to-quattro.$backup_suffix.bak"
   fi
   printf 'Server = %s\n' "$mirror_server" | as_root tee /etc/pacman.d/mirrorlist >/dev/null
 
@@ -350,7 +350,7 @@ configure_pacman_channel() {
     fail "/etc/pacman.conf does not exist."
   fi
 
-  as_root cp -f /etc/pacman.conf "/etc/pacman.conf.omarchy-upgrade-to-4.$backup_suffix.bak"
+  as_root cp -f /etc/pacman.conf "/etc/pacman.conf.omarchy-upgrade-to-quattro.$backup_suffix.bak"
 
   # Replace the normal Omarchy package repository. Dev package mode uses the
   # edge channel and resolves omarchy-dev / omarchy-settings-dev from [omarchy].
@@ -759,8 +759,8 @@ populate_legacy_hypr_defaults() {
 create_live_omarchy_overlay() {
   local backup="$1" compat_root shim_hypr_dir entry base cleanup_hook
 
-  compat_root="$TARGET_HOME/.local/state/omarchy/upgrade-to-4-live-omarchy"
-  shim_hypr_dir="$TARGET_HOME/.local/state/omarchy/upgrade-to-4-hypr-defaults"
+  compat_root="$TARGET_HOME/.local/state/omarchy/upgrade-to-quattro-live-omarchy"
+  shim_hypr_dir="$TARGET_HOME/.local/state/omarchy/upgrade-to-quattro-hypr-defaults"
 
   populate_legacy_hypr_defaults "$shim_hypr_dir" "$backup" || return 1
 
@@ -782,7 +782,7 @@ create_live_omarchy_overlay() {
   done
   ln -s "$shim_hypr_dir" "$compat_root/default/hypr"
 
-  cleanup_hook="$TARGET_HOME/.config/omarchy/hooks/post-boot.d/cleanup-upgrade-to-4-live-shim"
+  cleanup_hook="$TARGET_HOME/.config/omarchy/hooks/post-boot.d/cleanup-upgrade-to-quattro-live-shim"
   mkdir -p "$(dirname "$cleanup_hook")"
   cat >"$cleanup_hook" <<CLEANUP_HOOK
 #!/bin/bash
@@ -813,7 +813,7 @@ if [[ -e /usr/share/omarchy ]]; then
   if [[ -L $legacy_root ]]; then
     rm -f "$legacy_root"
   elif [[ -e $legacy_root ]]; then
-    backup="$legacy_root.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+    backup="$legacy_root.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
     mv "$legacy_root" "$backup"
   fi
 
@@ -1075,7 +1075,7 @@ run_post_upgrade_migrations() {
     USER="$target_user" \
     LOGNAME="$target_user" \
     OMARCHY_PATH=/usr/share/omarchy \
-    OMARCHY_UPGRADE_TO_4_LIVE=1 \
+    OMARCHY_UPGRADE_TO_QUATTRO_LIVE=1 \
     PATH="$package_path" \
     omarchy-migrate; then
     warn "Could not run Omarchy migrations; the user may be prompted to run them after login."
@@ -1534,7 +1534,7 @@ is_known_default_hash() {
 backup_config_file() {
   local file="$1"
   [[ -e $file || -L $file ]] || return 0
-  cp -af "$file" "$file.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+  cp -af "$file" "$file.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
 }
 
 mapfile -t retired_config_files < <(default_hash_paths retire)
@@ -1785,7 +1785,7 @@ BASHRC_PATCH_PY
 # cleanup, then keep only real user customizations active.
 uwsm_env="$HOME/.config/uwsm/env"
 if [[ -f $uwsm_env ]]; then
-  cp -f "$uwsm_env" "$uwsm_env.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+  cp -f "$uwsm_env" "$uwsm_env.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
   migrate_uwsm_env_customizations "$uwsm_env"
 fi
 
@@ -1806,7 +1806,7 @@ repair_chromium_copy_url_extension_flags
 # Carry over user-added backgrounds from the legacy git checkout backup, then
 # remove old symlinks that pointed ~/.config/omarchy/themes/* back into the
 # pre-4 checkout. Omarchy 4 reads stock themes from /usr/share/omarchy/themes.
-legacy_omarchy_backup="$HOME/.local/share/omarchy.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+legacy_omarchy_backup="$HOME/.local/share/omarchy.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
 if [[ -d $legacy_omarchy_backup/themes && -d $legacy_omarchy_backup/.git ]]; then
   (
     cd "$legacy_omarchy_backup"
@@ -1837,7 +1837,7 @@ fi
 for rel in waybar swayosd mako walker; do
   file="$HOME/.config/$rel"
   if [[ -e $file || -L $file ]]; then
-    backup="$file.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+    backup="$file.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
     rm -rf "$backup"
     mv "$file" "$backup"
   fi
@@ -1845,7 +1845,7 @@ done
 
 for rel in "${retired_config_files[@]}"; do
   file="$HOME/.config/$rel"
-  backup="$file.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+  backup="$file.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
 
   # UWSM env was hardcoded to the legacy checkout on older installs. Custom
   # non-Omarchy lines were migrated to env.d above; never keep the active file.
@@ -2079,7 +2079,7 @@ for desktop in \
 done
 
 legacy_icons_dir="$HOME/.local/share/applications/icons"
-legacy_icons_backup="$HOME/.local/share/applications/icons.omarchy-upgrade-to-4.$BACKUP_SUFFIX.bak"
+legacy_icons_backup="$HOME/.local/share/applications/icons.omarchy-upgrade-to-quattro.$BACKUP_SUFFIX.bak"
 if [[ -d $legacy_icons_dir ]]; then
   mkdir -p "$legacy_icons_backup"
   for icon in \
diff --git a/docs/migrations.md b/docs/migrations.md
index 4c572431..48c2125b 100644
--- a/docs/migrations.md
+++ b/docs/migrations.md
@@ -149,6 +149,6 @@ rm ~/.local/state/omarchy/migrations/<migration>.sh
 omarchy-migrate
 ```
 
-Omarchy 4.0 is upgraded through `bin/omarchy-upgrade-to-4`, not through the
+Omarchy 4.0 is upgraded through `bin/omarchy-upgrade-to-quattro`, not through the
 normal migration runner. Do not add compatibility migrations for old installer
 layouts; put pre-4 package-layout transition work in the upgrade command instead.
diff --git a/migrations/1782002156.sh b/migrations/1782002156.sh
index 2fc1010d..7ed9d0a8 100644
--- a/migrations/1782002156.sh
+++ b/migrations/1782002156.sh
@@ -41,7 +41,7 @@ networkd_units=(
   systemd-networkd-resolve-hook.socket
 )
 
-if [[ ${OMARCHY_UPGRADE_TO_4_LIVE:-0} == "1" ]]; then
+if [[ ${OMARCHY_UPGRADE_TO_QUATTRO_LIVE:-0} == "1" ]]; then
   as_root systemctl enable NetworkManager.service >/dev/null 2>&1 || true
 
   if systemctl is-active --quiet NetworkManager.service 2>/dev/null; then
diff --git a/test/shell.d/config-test.sh b/test/shell.d/config-test.sh
index 7143a205..bda8ab55 100755
--- a/test/shell.d/config-test.sh
+++ b/test/shell.d/config-test.sh
@@ -300,7 +300,7 @@ jq -e '
 ' "$TMPDIR/home/.config/omarchy/shell.json" >/dev/null
 pass "shell config removes widgets with remove alias"
 
-if grep -RIl 'upgrade-to-4\|Omarchy 4\.0 is upgraded' "$ROOT/migrations" >/dev/null; then
+if grep -RIl 'upgrade-to-quattro\|Omarchy 4\.0 is upgraded' "$ROOT/migrations" >/dev/null; then
   fail "4.0 upgrade is not modeled as a migration"
 fi
 pass "4.0 upgrade is handled outside the migration runner"
diff --git a/test/shell.d/hyprland-default-config-test.sh b/test/shell.d/hyprland-default-config-test.sh
index 7fa10f24..fabd5f2f 100644
--- a/test/shell.d/hyprland-default-config-test.sh
+++ b/test/shell.d/hyprland-default-config-test.sh
@@ -157,12 +157,12 @@ cmp -s "$ROOT/config/hypr/bindings.lua" "$migration_home/.config/hypr/bindings.l
   fail "plain legacy bindings preserve preinstall removal state"
 pass "migration converts plain legacy bindings to package-owned defaults"
 
-upgrade_script="$ROOT/bin/omarchy-upgrade-to-4"
+upgrade_script="$ROOT/bin/omarchy-upgrade-to-quattro"
 grep -Fq 'touch "$state_dir/preinstalls-removed"' "$upgrade_script" ||
-  fail "upgrade-to-4 preserves preinstall removal state"
+  fail "upgrade-to-quattro preserves preinstall removal state"
 
 mark_line=$(awk '/^mark_removed_preinstalls_from_legacy_bindings$/ { print NR; exit }' "$upgrade_script")
 copy_line=$(awk '/^copy_always_config_defaults$/ { print NR; exit }' "$upgrade_script")
-[[ -n $mark_line && -n $copy_line ]] || fail "upgrade-to-4 preinstall marker and config refresh calls exist"
-(( mark_line < copy_line )) || fail "upgrade-to-4 detects plain legacy bindings before overwriting Hyprland bindings"
-pass "upgrade-to-4 preserves preinstall removal before refreshing Hyprland bindings"
+[[ -n $mark_line && -n $copy_line ]] || fail "upgrade-to-quattro preinstall marker and config refresh calls exist"
+(( mark_line < copy_line )) || fail "upgrade-to-quattro detects plain legacy bindings before overwriting Hyprland bindings"
+pass "upgrade-to-quattro preserves preinstall removal before refreshing Hyprland bindings"
diff --git a/test/shell.d/network-manager-transition-test.sh b/test/shell.d/network-manager-transition-test.sh
index c1ec496a..44154a64 100644
--- a/test/shell.d/network-manager-transition-test.sh
+++ b/test/shell.d/network-manager-transition-test.sh
@@ -27,7 +27,7 @@ grep -F '20-wlan.network' "$hardware_network" >/dev/null
 grep -F 'omarchy-networkd-retired' "$hardware_network" >/dev/null
 pass "hardware setup retires archinstall networkd state"
 
-grep -F 'OMARCHY_UPGRADE_TO_4_LIVE' "$migration" >/dev/null
+grep -F 'OMARCHY_UPGRADE_TO_QUATTRO_LIVE' "$migration" >/dev/null
 grep -F 'systemctl disable --now "$unit"' "$migration" >/dev/null
 grep -F 'systemctl stop systemd-networkd.service' "$migration" >/dev/null
 grep -F 'NetworkManager.service' "$migration" >/dev/null
diff --git a/test/shell.d/systemd-test.sh b/test/shell.d/systemd-test.sh
index 6aa5d18e..673ede39 100755
--- a/test/shell.d/systemd-test.sh
+++ b/test/shell.d/systemd-test.sh
@@ -21,9 +21,9 @@ grep -Fx 'systemctl --user daemon-reload' "$first_run_units" >/dev/null
 grep -F 'omarchy-sleep-lock.service' "$first_run_units" >/dev/null
 pass "first-run reloads and enables the sleep lock service"
 
-upgrade_to_4="$ROOT/bin/omarchy-upgrade-to-4"
-grep -F '6870b232a6c0474b59187882e6d25ae771bba735098bcbedef8a2b73b97e2b6a' "$upgrade_to_4" >/dev/null
-grep -F 'ExecStart=%h/.local/share/omarchy/bin/omarchy-system-sleep-monitor' "$upgrade_to_4" >/dev/null
-grep -F 'ExecStart=/usr/bin/omarchy-system-sleep-monitor' "$upgrade_to_4" >/dev/null
-grep -F 'reset-failed omarchy-sleep-lock.service' "$upgrade_to_4" >/dev/null
+upgrade_to_quattro="$ROOT/bin/omarchy-upgrade-to-quattro"
+grep -F '6870b232a6c0474b59187882e6d25ae771bba735098bcbedef8a2b73b97e2b6a' "$upgrade_to_quattro" >/dev/null
+grep -F 'ExecStart=%h/.local/share/omarchy/bin/omarchy-system-sleep-monitor' "$upgrade_to_quattro" >/dev/null
+grep -F 'ExecStart=/usr/bin/omarchy-system-sleep-monitor' "$upgrade_to_quattro" >/dev/null
+grep -F 'reset-failed omarchy-sleep-lock.service' "$upgrade_to_quattro" >/dev/null
 pass "Omarchy 4 upgrade repairs the legacy sleep lock unit path"
diff --git a/test/shell.d/upgrade-to-4-test.sh b/test/shell.d/upgrade-to-4-test.sh
deleted file mode 100644
index b3210f91..00000000
--- a/test/shell.d/upgrade-to-4-test.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-
-source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
-
-upgrade_to_4="$ROOT/bin/omarchy-upgrade-to-4"
-first_run_wifi="$ROOT/install/user/first-run/wifi.sh"
-
-grep -F 'pacman -Syu --needed' "$upgrade_to_4" >/dev/null
-grep -F 'omarchy-update-aur-pkgs' "$upgrade_to_4" >/dev/null
-grep -F 'omarchy-update-available' "$upgrade_to_4" >/dev/null
-grep -F 'omarchy-update-mise' "$upgrade_to_4" >/dev/null
-grep -F 'run_final_system_package_upgrade' "$upgrade_to_4" >/dev/null
-pass "Omarchy 4 upgrade completes package update checks"
-
-grep -F 'run_post_upgrade_migrations' "$upgrade_to_4" >/dev/null
-grep -F 'omarchy-migrate' "$upgrade_to_4" >/dev/null
-grep -F 'dust' "$upgrade_to_4" >/dev/null
-grep -F 'satty' "$upgrade_to_4" >/dev/null
-pass "Omarchy 4 upgrade applies packaged migrations"
-
-grep -F 'skip-first-run-update-notification' "$upgrade_to_4" >/dev/null
-grep -F 'skip-first-run-update-notification' "$first_run_wifi" >/dev/null
-grep -F '(( skip_update_notification )) && return 0' "$first_run_wifi" >/dev/null
-pass "Omarchy 4 upgrade suppresses the fresh-install update toast"
-
-grep -F 'configure_snapper_policy' "$upgrade_to_4" >/dev/null
-grep -F '/usr/share/omarchy/install/config/snapper.sh' "$upgrade_to_4" >/dev/null
-grep -F 'bash -euo pipefail "$snapper_config_script"' "$upgrade_to_4" >/dev/null
-pass "Omarchy 4 upgrade normalizes Snapper retention"
-
-grep -F 'OMARCHY_UPGRADE_TO_4_LIVE=1' "$upgrade_to_4" >/dev/null
-grep -F 'systemd-networkd.service' "$upgrade_to_4" >/dev/null
-grep -F 'systemd-networkd.socket' "$upgrade_to_4" >/dev/null
-grep -F 'systemd-networkd-resolve-hook.socket' "$upgrade_to_4" >/dev/null
-pass "Omarchy 4 upgrade retires systemd-networkd for NetworkManager"
diff --git a/test/shell.d/upgrade-to-quattro-test.sh b/test/shell.d/upgrade-to-quattro-test.sh
new file mode 100644
index 00000000..ae6f3cfe
--- /dev/null
+++ b/test/shell.d/upgrade-to-quattro-test.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
+
+upgrade_to_quattro="$ROOT/bin/omarchy-upgrade-to-quattro"
+first_run_wifi="$ROOT/install/user/first-run/wifi.sh"
+
+grep -F 'pacman -Syu --needed' "$upgrade_to_quattro" >/dev/null
+grep -F 'omarchy-update-aur-pkgs' "$upgrade_to_quattro" >/dev/null
+grep -F 'omarchy-update-available' "$upgrade_to_quattro" >/dev/null
+grep -F 'omarchy-update-mise' "$upgrade_to_quattro" >/dev/null
+grep -F 'run_final_system_package_upgrade' "$upgrade_to_quattro" >/dev/null
+pass "Omarchy 4 upgrade completes package update checks"
+
+grep -F 'run_post_upgrade_migrations' "$upgrade_to_quattro" >/dev/null
+grep -F 'omarchy-migrate' "$upgrade_to_quattro" >/dev/null
+grep -F 'dust' "$upgrade_to_quattro" >/dev/null
+grep -F 'satty' "$upgrade_to_quattro" >/dev/null
+pass "Omarchy 4 upgrade applies packaged migrations"
+
+grep -F 'skip-first-run-update-notification' "$upgrade_to_quattro" >/dev/null
+grep -F 'skip-first-run-update-notification' "$first_run_wifi" >/dev/null
+grep -F '(( skip_update_notification )) && return 0' "$first_run_wifi" >/dev/null
+pass "Omarchy 4 upgrade suppresses the fresh-install update toast"
+
+grep -F 'configure_snapper_policy' "$upgrade_to_quattro" >/dev/null
+grep -F '/usr/share/omarchy/install/config/snapper.sh' "$upgrade_to_quattro" >/dev/null
+grep -F 'bash -euo pipefail "$snapper_config_script"' "$upgrade_to_quattro" >/dev/null
+pass "Omarchy 4 upgrade normalizes Snapper retention"
+
+grep -F 'OMARCHY_UPGRADE_TO_QUATTRO_LIVE=1' "$upgrade_to_quattro" >/dev/null
+grep -F 'systemd-networkd.service' "$upgrade_to_quattro" >/dev/null
+grep -F 'systemd-networkd.socket' "$upgrade_to_quattro" >/dev/null
+grep -F 'systemd-networkd-resolve-hook.socket' "$upgrade_to_quattro" >/dev/null
+pass "Omarchy 4 upgrade retires systemd-networkd for NetworkManager"