Drop Wi-Fi power save toggling in favor of keeping it off

The on-battery toggle bought a fraction of a watt while the radio
idled -- twenty-some minutes across a full discharge in the best case
-- and paid for it with 20-300ms latency spikes on idle links and
outright link drops on Intel BE200/BE211 firmware. NetworkManager can
keep power save off natively with one conf.d line, which replaces the
udev rule, the setter script, and any per-card deny-listing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

bin/omarchy-wifi-powersave

@@ -1,10 +0,0 @@
-#!/bin/bash
-
-# omarchy:summary=Set Wi-Fi power save mode on wireless interfaces
-# omarchy:args=<on|off>
-
-shopt -s nullglob
-for iface in /sys/class/net/*/wireless; do
-  iface="$(basename "$(dirname "$iface")")"
-  iw dev "$iface" set power_save "$1" 2>/dev/null
-done

etc/NetworkManager/conf.d/omarchy-wifi-powersave.conf

@@ -0,0 +1,5 @@
+# Keep Wi-Fi power save off: it trades 20-300ms latency spikes on idle links
+# for a fraction of a watt while the radio idles, and broken firmware (Intel
+# BE200/BE211) drops the link outright when it naps.
+[connection]
+wifi.powersave = 2

etc/udev/rules.d/99-omarchy-wifi-powersave.rules

@@ -1,2 +0,0 @@
-SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="0", RUN+="/usr/bin/systemd-run --no-block --collect --unit=omarchy-wifi-powersave-on  /usr/bin/omarchy-wifi-powersave on"
-SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="1", RUN+="/usr/bin/systemd-run --no-block --collect --unit=omarchy-wifi-powersave-off /usr/bin/omarchy-wifi-powersave off"

migrations/1784914435.sh

@@ -0,0 +1,19 @@
+echo "Keep Wi-Fi power save off for lower latency"
+
+as_root() {
+  if (( EUID == 0 )); then
+    "$@"
+  else
+    sudo "$@"
+  fi
+}
+
+as_root nmcli general reload conf >/dev/null 2>&1 || true
+
+# NetworkManager only applies wifi.powersave when a connection activates, so
+# also switch it off directly for the running session.
+shopt -s nullglob
+for wireless in /sys/class/net/*/wireless; do
+  iface=$(basename "$(dirname "$wireless")")
+  as_root iw dev "$iface" set power_save off 2>/dev/null || true
+done