diff --git a/packaging/nfpm.yaml b/packaging/nfpm.yaml
index ea3a61b..c6f5e02 100644
--- a/packaging/nfpm.yaml
+++ b/packaging/nfpm.yaml
@@ -47,12 +47,6 @@ scripts:
   postremove: packaging/postrm.sh
 
 overrides:
-  deb:
-    depends:
-      - python3 (>= 3.10)
-      - smartmontools
-      - systemd
-
   rpm:
     depends:
       - python3 >= 3.10
diff --git a/packaging/postinst.sh b/packaging/postinst.sh
index 1e36a49..1dd1989 100755
--- a/packaging/postinst.sh
+++ b/packaging/postinst.sh
@@ -1,15 +1,9 @@
 #!/bin/sh
-# postinst — install and upgrade paths (spec §7).
+# postinst — deb install and upgrade paths (spec §7).
 #
 # dpkg calls: postinst configure [most-recently-configured-version]
-#   fresh install: $1 = "configure"
-#   upgrade:       $1 = "configure"  (old version as $2 when available)
-#
-# rpm calls: %post $1 = 1 (fresh install) / 2 (upgrade)
-#   (handled by packaging/rpm/post.sh)
-#
-# Install:  sysusers, tmpfiles, daemon-reload — nothing else (dormant).
-# Upgrade:  snapshot, migration, daemon-reload, conditional timer restart.
+#   fresh install: $1 = "configure", $2 = ""
+#   upgrade:       $1 = "configure", $2 = old version
 set -eu
 
 STORE_DIR="/var/lib/fenris"
@@ -20,13 +14,10 @@ VENV_PYTHON="/opt/fenris/bin/python3"
 case "${1:-}" in
     configure)
         if [ -n "${2:-}" ]; then
-            # Upgrade — $2 is the old version
-            # Snapshot observation store (one generation)
+            # Upgrade — snapshot, migration, daemon-reload, conditional timer restart
             if [ -f "${STORE_DB}" ]; then
                 cp "${STORE_DB}" "${STORE_BAK}" 2>/dev/null || true
             fi
-
-            # Forward-only schema migration
             if [ -x "${VENV_PYTHON}" ] && [ -f "${STORE_DB}" ]; then
                 "${VENV_PYTHON}" -c "
 from fenris.store import migrate_to_latest
@@ -35,9 +26,9 @@ n = migrate_to_latest(Path('${STORE_DB}'))
 print(f'Fenris migration: {n} step(s) applied') if n else None
 " 2>&1 || echo "Fenris: migration skipped (store not yet initialized)"
             fi
-
-            # Restart collect timer only if unit contents changed AND it is active
-            for unit in fenris-collect.timer fenris-collect.service; do
+            systemctl daemon-reload 2>/dev/null || true
+            # Restart timer only if unit contents changed AND active (spec §7)
+            for unit in fenris-collect.timer; do
                 if systemctl is-active --quiet "${unit}" 2>/dev/null; then
                     TMPFILE="$(mktemp)"
                     systemctl cat "${unit}" > "${TMPFILE}" 2>/dev/null || true
@@ -49,7 +40,7 @@ print(f'Fenris migration: {n} step(s) applied') if n else None
                 fi
             done
         fi
-        # Always run on both fresh install and upgrade
+        # sysusers, tmpfiles, daemon-reload (both fresh install and upgrade)
         systemd-sysusers  || true
         systemd-tmpfiles --create  || true
         systemctl daemon-reload  || true
diff --git a/packaging/postrm.sh b/packaging/postrm.sh
index 65fd26f..5550254 100755
--- a/packaging/postrm.sh
+++ b/packaging/postrm.sh
@@ -3,14 +3,12 @@
 #
 # dpkg calls: postrm remove    (after package files removed)
 #             postrm purge     (after conffiles and config removed)
-#             postrm upgrade   (after new version installed)
 set -eu
 
 case "${1:-}" in
     purge)
         rm -rf /etc/fenris
         rm -rf /var/lib/fenris
-        # Remove the fenris group if it exists
         if getent group fenris > /dev/null 2>&1; then
             groupdel fenris 2>/dev/null || true
         fi
@@ -18,6 +16,4 @@ case "${1:-}" in
     remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
         ;;
 esac
-
-# Always daemon-reload after removal (units may be gone)
 systemctl daemon-reload 2>/dev/null || true
diff --git a/packaging/preinst.sh b/packaging/preinst.sh
index 6e4ec35..938b2cb 100755
--- a/packaging/preinst.sh
+++ b/packaging/preinst.sh
@@ -1,6 +1,5 @@
 #!/bin/sh
 # preinst — abort if make-install remnants detected (spec §7, §9).
-# Dual marker: /var/lib/fenris/manifest.txt or /etc/systemd/system/fenris-collect.timer.
 set -eu
 
 MARKER1="/var/lib/fenris/manifest.txt"
diff --git a/packaging/prerm.sh b/packaging/prerm.sh
index 09ef725..3642006 100755
--- a/packaging/prerm.sh
+++ b/packaging/prerm.sh
@@ -7,7 +7,7 @@ set -eu
 
 case "${1:-}" in
     remove)
-        # Sanctioned disable — close the monitoring period as user_disabled
+        # Sanctioned disable — close monitoring period (spec §7)
         if [ -x /usr/libexec/fenris/fenris-monitor ]; then
             /usr/libexec/fenris/fenris-monitor disable --now 2>/dev/null || true
         fi
diff --git a/packaging/rpm/post.sh b/packaging/rpm/post.sh
index a62ea71..b6092dd 100755
--- a/packaging/rpm/post.sh
+++ b/packaging/rpm/post.sh
@@ -1,8 +1,5 @@
 #!/bin/sh
 # RPM %post — post-install/upgrade scriptlet (spec §7).
-#
-# Fresh install: sysusers, tmpfiles, daemon-reload — nothing else (dormant).
-# Upgrade: snapshot, migration, daemon-reload, conditional timer restart.
 set -eu
 
 STORE_DIR="/var/lib/fenris"
@@ -16,11 +13,10 @@ if [ "$1" -eq 1 ]; then
     systemd-tmpfiles --create  || true
     systemctl daemon-reload  || true
 elif [ "$1" -ge 2 ]; then
-    # Upgrade
+    # Upgrade — snapshot, migration, daemon-reload, conditional timer restart
     if [ -f "${STORE_DB}" ]; then
         cp "${STORE_DB}" "${STORE_BAK}" 2>/dev/null || true
     fi
-
     if [ -x "${VENV_PYTHON}" ] && [ -f "${STORE_DB}" ]; then
         "${VENV_PYTHON}" -c "
 from fenris.store import migrate_to_latest
@@ -29,12 +25,8 @@ n = migrate_to_latest(Path('${STORE_DB}'))
 print(f'Fenris migration: {n} step(s) applied') if n else None
 " 2>&1 || echo "Fenris: migration skipped (store not yet initialized)"
     fi
-
-    systemd-sysusers  || true
-    systemd-tmpfiles --create  || true
-    systemctl daemon-reload  || true
-
-    for unit in fenris-collect.timer fenris-collect.service; do
+    systemctl daemon-reload 2>/dev/null || true
+    for unit in fenris-collect.timer; do
         if systemctl is-active --quiet "${unit}" 2>/dev/null; then
             TMPFILE="$(mktemp)"
             systemctl cat "${unit}" > "${TMPFILE}" 2>/dev/null || true
diff --git a/packaging/rpm/postun.sh b/packaging/rpm/postun.sh
index c71151a..bf571cd 100755
--- a/packaging/rpm/postun.sh
+++ b/packaging/rpm/postun.sh
@@ -1,20 +1,13 @@
 #!/bin/sh
 # RPM %postun — post-uninstall scriptlet (spec §7).
-#
-# On erase ($1 -eq 0): remove config (unmodified removed, modified as .rpmsave),
-#                       store, backups, and group.
-# On upgrade ($1 -ge 1): daemon-reload only.
 set -eu
 
 if [ "$1" -eq 0 ]; then
-    # Package fully erased
+    # Package fully erased — remove config, store, group
     rm -rf /etc/fenris
     rm -rf /var/lib/fenris
-    # Remove the fenris group if it exists
     if getent group fenris > /dev/null 2>&1; then
         groupdel fenris 2>/dev/null || true
     fi
 fi
-
-# Always daemon-reload (units may have been removed)
 systemctl daemon-reload 2>/dev/null || true
diff --git a/packaging/rpm/preun.sh b/packaging/rpm/preun.sh
index fbaa721..13e2f79 100755
--- a/packaging/rpm/preun.sh
+++ b/packaging/rpm/preun.sh
@@ -1,16 +1,13 @@
 #!/bin/sh
 # RPM %preun — pre-uninstall scriptlet (spec §7).
-#
-# On erase ($1 -eq 0):  sanctioned disable — close monitoring period.
-# On upgrade ($1 -ge 1): no-op — never interrupt monitoring.
 set -eu
 
 if [ "$1" -eq 0 ]; then
-    # Package is being erased (fully removed), not just upgraded
+    # Package is being erased — sanctioned disable (spec §7)
     if [ -x /usr/libexec/fenris/fenris-monitor ]; then
         /usr/libexec/fenris/fenris-monitor disable --now 2>/dev/null || true
     fi
     systemctl stop fenris-collect.timer 2>/dev/null || true
     systemctl disable fenris-collect.timer 2>/dev/null || true
 fi
-# On upgrade ($1 -ge 1): do nothing — monitoring continues uninterrupted
+# On upgrade ($1 -ge 1): do nothing