i3status-rust: the bars as a module, claiming node-bar (hq ADR 0208)
Owns both bars and their icons, the bar blocks as an i3 drop-in; the battery, GPU and headset blocks leave (hardware and a person's devices), the weather needs no key; the update count and the bar watchdog become module code, the watchdog started once per session. Go tools reload, blocks, block-run and themes.
This commit is contained in:
jochen
+64
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#!/usr/bin/env bash
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# i3bar-watchdog [session-pid] (module i3status-rust, novox/hq ADR 0208): respawns a bar that died.
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#
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# i3 starts one i3bar per `bar { }` block and never restarts one that exits, and a reload does not
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# either. Changing the monitor setup reliably kills the bar that owns the tray. This brings back the
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# one missing i3bar, without restarting i3, and logs the outputs at that moment: the evidence for the
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# cause, which is i3bar's.
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#
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# Started once per session from the session's start, with the session's own pid; it ends when that
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# process does. Adopted from the predecessor's i3-bar-watchdog user unit of 2026-10-04.
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set -uo pipefail
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session_pid="${1:-}"
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interval="${I3_BAR_WATCHDOG_INTERVAL:-5}"
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# Two misses in a row before acting: an i3 restart tears every bar down and starts them again.
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confirm="${I3_BAR_WATCHDOG_CONFIRM:-2}"
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# Never respawn the same bar more often than this, so a bar that dies at once is not a tight loop.
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cooldown="${I3_BAR_WATCHDOG_COOLDOWN:-30}"
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log() { printf 'i3bar-watchdog: %s\n' "$*" >&2; }
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for tool in i3-msg i3bar pgrep; do
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command -v "$tool" >/dev/null 2>&1 || {
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log "$tool is missing; not watching"
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exit 1
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}
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done
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declare -A missed=() fixed=()
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bar_ids() { i3-msg -t get_bar_config 2>/dev/null | grep -oE '"[^"]+"' | tr -d '"'; }
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outputs() { xrandr --listmonitors 2>/dev/null | tail -n +2 | awk '{print $2" "$3}' | tr '\n' ' '; }
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session_alive() { [ -z "$session_pid" ] || kill -0 "$session_pid" 2>/dev/null; }
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while session_alive; do
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sleep "$interval"
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socket="$(i3 --get-socketpath 2>/dev/null)"
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[ -n "$socket" ] && [ -S "$socket" ] || continue
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ids="$(bar_ids)"
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[ -n "$ids" ] || continue
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while read -r id; do
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[ -n "$id" ] || continue
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if pgrep -u "$EUID" -f -- "i3bar --bar_id=$id" >/dev/null 2>&1; then
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missed[$id]=0
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continue
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fi
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missed[$id]=$((${missed[$id]:-0} + 1))
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[ "${missed[$id]}" -ge "$confirm" ] || continue
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now="$(date +%s)"
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if [ $((now - ${fixed[$id]:-0})) -lt "$cooldown" ]; then
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continue
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fi
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log "$id is gone; respawning it. Outputs now: $(outputs)"
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nohup i3bar --bar_id="$id" --socket="$socket" >/dev/null 2>&1 &
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disown 2>/dev/null || true
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fixed[$id]="$now"
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sleep 2
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if pgrep -u "$EUID" -f -- "i3bar --bar_id=$id" >/dev/null 2>&1; then
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missed[$id]=0
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else
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log "$id exited within 2s of respawning; check its status_command"
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fi
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done <<<"$ids"
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done
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+63
@@ -0,0 +1,63 @@
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#!/usr/bin/env bash
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# i3status-updates [threshold] (module i3status-rust, novox/hq ADR 0208): the pending updates, for
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# the bottom bar's custom block (json = true). Emits one JSON line.
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#
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# Adopted from the operator's pkg-updates of 2026-10-04. The native `packages` block showed a raw
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# red error on every transient network failure, which on a roaming laptop is often. This keeps the
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# last good result through a failure and shows an error only after `threshold` failures in a row
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# (default 10). Official packages through checkupdates (pacman-contrib, a temporary database, no
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# root); AUR packages through paru when it is installed, and none counted when it is not.
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set -uo pipefail
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threshold="${1:-10}"
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icon="update"
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state_dir="${XDG_RUNTIME_DIR:-/tmp}/i3status-updates"
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mkdir -p "$state_dir"
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last="$state_dir/last_good.json"
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failures="$state_dir/failures"
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json() { printf '{"icon":"%s","state":"%s","text":"%s","short_text":"%s"}' "$icon" "$1" "$2" "$3"; }
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count() { [ -n "$1" ] && printf '%s\n' "$1" | grep -c . || echo 0; }
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official="$(checkupdates 2>/dev/null)"
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official_rc=$?
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aur="" aur_rc=0
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if command -v paru >/dev/null 2>&1; then
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aur="$(paru -Qua 2>/dev/null)"
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aur_rc=$?
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fi
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# checkupdates: 0 updates listed, 2 none pending; anything else is a failure.
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if { [ "$official_rc" -eq 0 ] || [ "$official_rc" -eq 2 ]; } && [ "$aur_rc" -eq 0 ]; then
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o="$(count "$official")"
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a="$(count "$aur")"
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total=$((o + a))
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if [ "$total" -eq 0 ]; then
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payload="$(json Good "up to date" "")"
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else
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# A kernel update wants a reboot: the one worth not putting off.
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state=Info
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printf '%s\n' "$official" | grep -qE '^(linux|linux-lts|linux-zen) ' && state=Warning
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label="$o + $a = $total updates"
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[ "$a" -eq 0 ] && label="$total updates"
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[ "$total" -eq 1 ] && label="1 update"
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payload="$(json "$state" "$label" "$total")"
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fi
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printf '%s' "$payload" >"$last"
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printf '0' >"$failures"
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printf '%s\n' "$payload"
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exit 0
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fi
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n=$(($(cat "$failures" 2>/dev/null || echo 0) + 1))
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printf '%s' "$n" >"$failures"
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if [ "$n" -ge "$threshold" ]; then
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json Critical "update check failing (${n}x)" "!"
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echo
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elif [ -s "$last" ]; then
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cat "$last"
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echo
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else
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json Idle "" ""
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echo
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fi
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@@ -0,0 +1,100 @@
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# The bottom bar (module i3status-rust, novox/hq ADR 0208). Owned by the mesh: replaced at every
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# push. Adopted from the workstations of 2026-10-04 with what follows a machine's hardware or one
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# person's devices left out: the battery and the GPU belong to a machine model's hardware module,
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# and a headset's address is not the bar's to know. Every block here works the same on any machine.
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icons_format = "{icon}"
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[theme]
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theme = "plain"
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[theme.overrides]
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idle_bg = "#000000"
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idle_fg = "#f1f1f1"
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info_bg = "#000000"
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info_fg = "#f1f1f1"
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good_bg = "#000000"
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good_fg = "#859900"
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warning_bg = "#000000"
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warning_fg = "#de5200"
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critical_bg = "#000000"
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critical_fg = "#ff0000"
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separator = " | "
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separator_fg = "#ffffff"
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separator_bg = "#000000"
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[icons]
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icons = "custom-icons"
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[[block]]
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block = "tea_timer"
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format = "$icon{ $minutes:$seconds|}"
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done_cmd = "notify-send 'Timer finished'"
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# Pending updates: official and, where an AUR helper is installed, AUR. The script keeps the last good
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# count through a network gap and shows an error only after ten failed checks in a row. Click: the
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# list, in the launcher's menu.
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[[block]]
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block = "custom"
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command = "~/.local/bin/i3status-updates 10"
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json = true
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interval = 1800
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[[block.click]]
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button = "left"
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cmd = "checkupdates | dmenu -l 20 -p Updates"
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[[block]]
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block = "cpu"
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[[block]]
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block = "disk_space"
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path = "/"
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info_type = "used"
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alert_unit = "GB"
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interval = 20
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warning = 850
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alert = 920
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format = "$icon / $used.eng(w:2) ($percentage.eng(w:2))"
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[[block]]
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block = "disk_space"
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path = "/home"
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info_type = "used"
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alert_unit = "GB"
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interval = 20
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warning = 850
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alert = 920
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format = "$icon /home $used.eng(w:2) ($percentage.eng(w:2))"
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[[block]]
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block = "memory"
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format = "$icon $mem_total_used.eng(w:2) ($mem_total_used_percents.eng(w:2))"
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format_alt = "$icon_swap $swap_used.eng(w:2) ($swap_used_percents.eng(w:2))"
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[[block]]
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block = "docker"
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interval = 2
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format = "$icon $running/$total"
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[[block]]
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block = "sound"
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[[block.click]]
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button = "left"
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cmd = "pavucontrol"
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# The weather from the Norwegian Meteorological Institute, which needs no key, where the machine is.
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[[block]]
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block = "weather"
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format = "$icon $weather_verbose ($location) $temp"
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autolocate = true
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autolocate_interval = 600
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[block.service]
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name = "metno"
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[[block]]
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block = "notify"
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driver = "dunst"
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format = " $icon {($notification_count.eng(w:1))|}"
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[[block]]
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block = "time"
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interval = 1
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format = "$timestamp.datetime(f:'%a %d/%m %H:%M:%S')"
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@@ -0,0 +1,34 @@
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# The bars (module i3status-rust, novox/hq ADR 0208). Owned by the mesh: replaced at every push.
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# i3 reads this file through its configuration's `include ~/.config/i3/config.d/*.conf`. The bottom
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# bar shows the machine; the top bar the focused window and the tray, on the primary output. The
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# face is the monospace one every desktop module names.
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bar {
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font pango:JetBrainsMono Nerd Font 11
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position bottom
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status_command i3status-rs ~/.config/i3status-rust/bottom-bar.toml
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tray_output none
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colors {
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separator #ffffff
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background #000000
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statusline #ffffff
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# The text on an accent-coloured button is dark: light text on the accent was barely
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# legible.
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focused_workspace #de5200 #de5200 #000000
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active_workspace #de5200 #de5200 #000000
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inactive_workspace #000000 #000000 #ffffff
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urgent_workspace #2f343a #900000 #ffffff
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}
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}
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bar {
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font pango:JetBrainsMono Nerd Font 11
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position top
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status_command i3status-rs ~/.config/i3status-rust/top-bar.toml
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workspace_buttons no
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tray_output primary
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colors {
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separator #ffffff
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background #000000
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statusline #ffffff
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}
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}
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@@ -0,0 +1,135 @@
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# Icons for the bars (module i3status-rust, novox/hq ADR 0208), from the JetBrains Mono Nerd Font.
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# Owned by the mesh: replaced at every push. Adopted unchanged from the workstations of 2026-10-04.
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# Material from NerdFont
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# https://www.nerdfonts.com/cheat-sheet
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backlight = [
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"\ue38d", # nf-weather-moon_new
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"\ue3d4", # nf-weather-moon_alt_waxing_gibbous_6
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"\ue3d3", # nf-weather-moon_alt_waxing_gibbous_5
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"\ue3d2", # nf-weather-moon_alt_waxing_gibbous_4
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"\ue3d1", # nf-weather-moon_alt_waxing_gibbous_3
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"\ue3d0", # nf-weather-moon_alt_waxing_gibbous_2
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"\ue3cf", # nf-weather-moon_alt_waxing_gibbous_1
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"\ue3ce", # nf-weather-moon_alt_first_quarter
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"\ue3cd", # nf-weather-moon_alt_waxing_crescent_6
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"\ue3cc", # nf-weather-moon_alt_waxing_crescent_5
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"\ue3cb", # nf-weather-moon_alt_waxing_crescent_4
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"\ue3ca", # nf-weather-moon_alt_waxing_crescent_3
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"\ue3c9", # nf-weather-moon_alt_waxing_crescent_2
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"\ue3c8", # nf-weather-moon_alt_waxing_crescent_1
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"\ue39b", # nf-weather-moon_full
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]
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bat_charging = "\U000f0084" # nf-md-battery_charging
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bat_not_available = "\U000f0091" # nf-md-battery_unknown
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bat = [
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"\U000f007a", # nf-md-battery_10
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"\U000f007b", # nf-md-battery_20
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"\U000f007c", # nf-md-battery_30
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"\U000f007d", # nf-md-battery_40
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"\U000f007e", # nf-md-battery_50
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"\U000f007f", # nf-md-battery_60
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"\U000f0080", # nf-md-battery_70
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"\U000f0081", # nf-md-battery_80
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"\U000f0082", # nf-md-battery_90
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"\U000f0079", # nf-md-battery
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]
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bell = "\U000f009c" # nf-md-bell_outline
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bell-slash = "\U000f009b" # nf-md-bell_off
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blackberry = "\uf307" # nf-md-blackberry
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bluetooth = "\U000f00af" # nf-md-bluetooth
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calendar = "\U000f00ed" # nf-md-calendar
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cogs = "\U000f0493" # nf-md-cog
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cpu = [
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"\U000F0F86", # nf-md-speedometer_slow
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"\U000F0F85", # nf-md-speedometer_medium
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"\U000F04C5", # nf-md-speedometer
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]
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cpu_boost_on = "\U000f0521" # nf-md-toggle_switch
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cpu_boost_off = "\U000f0a19" # nf-md-toggle_switch_off_outline
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disk_drive = "\U000f02ca" # nf-md-harddisk
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docker = "\uf308" # nf-linux-docker
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github = "\U000f02a4" # nf-md-github
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gpu = "\U000f0379" # nf-md-monitor
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headphones = "\U000f02cb" # nf-md-headphones
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joystick = "\U000f0297" # nf-md-gamepad_variant
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keyboard = "\U000f030c" # nf-md-keyboard
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mail = "\U000f01ee" # nf-md-email
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memory_mem = "\U000f035b" # nf-md-memory
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memory_swap = "\U000f02ca" # nf-md-harddisk
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mouse = "\U000f037d" # nf-md-mouse
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music = "\U000f075a" # nf-md-music
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music_next = "\U000f04ad" # nf-md-skip_next
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music_pause = "\U000f03e4" # nf-md-pause
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music_play = "\U000f040a" # nf-md-play
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music_prev = "\U000f04ae" # nf-md-skip_previous
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net_bridge = "\U000f04aa" # nf-md-sitemap
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net_down = "\U000f01da" # nf-md-download
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net_loopback = "\U000f006f" # nf-md-backup_restore
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net_modem = "\U000f03f2" # nf-md-phone
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net_cellular = [
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"\U000F08FD", # nf-md-network_strength_off_outline
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"\U000F08FE", # nf-md-network_strength_outline
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"\U000F08F4", # nf-md-network_strength_1
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"\U000F08F6", # nf-md-network_strength_2
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"\U000F08F8", # nf-md-network_strength_3
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"\U000F08FA", # nf-md-network_strength_4
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]
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net_up = "\U000f0552" # nf-md-upload
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net_vpn = "\U000f0582" # nf-md-vpn
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net_wired = "\U000f0200" # nf-md-ethernet
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net_wireless = [
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"\U000F092F", # nf-md-wifi_strength_outline
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||||
"\U000F091F", # nf-md-wifi_strength_1
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"\U000F0922", # nf-md-wifi_strength_2
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"\U000F0925", # nf-md-wifi_strength_3
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"\U000F0928", # nf-md-wifi_strength_4
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]
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notification = "\U000f009c" # nf-md-bell_outline
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phone = "\U000f03f2" # nf-md-phone
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phone_disconnected = "\U000f0658" # nf-md-phone_minus
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ping = "\U000f051f" # nf-md-timer_sand
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pomodoro = "\ue001" # nf-pom-pomodoro_done
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pomodoro_break = "\U000f0176" # nf-md-coffee
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pomodoro_paused = "\U000f03e4" # nf-md-pause
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pomodoro_started = "\U000f040a" # nf-md-play
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pomodoro_stopped = "\U000f04db" # nf-md-stop
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resolution = "\U000f0293" # nf-md-fullscreen
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tasks = "\U000f05c7" # nf-md-playlist_check
|
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tea = "\U000f0d9e" # nf-md-tea
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thermometer = [
|
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"\U000f10c3", # nf-md-thermometer_low
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"\U000f050f", # nf-md-thermometer
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||||
"\U000f10c2", # nf-md-thermometer_high
|
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]
|
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time = "\U000f0150" # nf-md-clock_outline
|
||||
toggle_off = "\U000f0a19" # nf-md-toggle_switch_off_outline
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toggle_on = "\U000f0521" # nf-md-toggle_switch
|
||||
unknown = "\U000f0186" # nf-md-comment_question_outline | TODO: Make default?
|
||||
update = "\U000f03d5" # nf-md-package_up
|
||||
uptime = "\U000f0153" # nf-md-clock_in
|
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volume_muted = "\U000f075f" # nf-md-volume_mute
|
||||
volume = [
|
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"\U000f057f", # nf-md-volume_low
|
||||
"\U000f0580", # nf-md-volume_medium
|
||||
"\U000f057e", # nf-md-volume_high
|
||||
]
|
||||
microphone_muted = "\U000f036d" # nf-md-microphone_off
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||||
microphone = [
|
||||
"\U000f036e", # nf-md-microphone_outline
|
||||
"\U000f036c", # nf-md-microphone
|
||||
"\U000f036c", # nf-md-microphone
|
||||
]
|
||||
xrandr = "\U000f037a" # nf-md-monitor_multiple
|
||||
|
||||
# Weather icons (https://greshake.github.io/i3status-rust/i3status_rs/blocks/weather/index.html)
|
||||
weather_sun = "\ue30d" # nf-weather-day_sunny (when weather is reported as “Clear” during the day)
|
||||
weather_moon = "\ue32b" # nf-weather-night_clear (when weather is reported as “Clear” at night)
|
||||
weather_clouds = "\ue312" # nf-weather-cloudy (when weather is reported as “Clouds” during the day)
|
||||
weather_clouds_night = "\ue37e" # nf-weather-night_alt_cloudy (when weather is reported as “Clouds” at night)
|
||||
weather_fog = "\ue313" # nf-weather-fog (when weather is reported as “Fog” or “Mist” during the day)
|
||||
weather_fog_night = "\ue346" # nf-weather-night_fog (when weather is reported as “Fog” or “Mist” at night)
|
||||
weather_rain = "\ue318" # nf-weather-rain (when weather is reported as “Rain” or “Drizzle” during the day)
|
||||
weather_rain_night = "\ue325" # nf-weather-night_alt_rain (when weather is reported as “Rain” or “Drizzle” at night)
|
||||
weather_snow = "\ue31a" # nf-weather-snow (when weather is reported as “Snow”)
|
||||
weather_thunder = "\ue31d" # nf-weather-thunderstorm (when weather is reported as “Thunderstorm” during the day)
|
||||
weather_thunder_night = "\ue32a" # nf-weather-night_alt_thunderstorm (when weather is reported as “Thunderstorm” at night)
|
||||
@@ -0,0 +1,33 @@
|
||||
# The top bar (module i3status-rust, novox/hq ADR 0208): the focused window's title and the uptime.
|
||||
# Owned by the mesh: replaced at every push. Adopted unchanged from the workstations of 2026-10-04.
|
||||
icons_format = "{icon}"
|
||||
|
||||
[theme]
|
||||
theme = "plain"
|
||||
[theme.overrides]
|
||||
idle_bg = "#000000"
|
||||
idle_fg = "#f1f1f1"
|
||||
info_bg = "#000000"
|
||||
info_fg = "#f1f1f1"
|
||||
good_bg = "#000000"
|
||||
good_fg = "#859900"
|
||||
warning_bg = "#000000"
|
||||
warning_fg = "#de5200"
|
||||
critical_bg = "#000000"
|
||||
critical_fg = "#ff0000"
|
||||
separator = " | "
|
||||
separator_fg = "#ffffff"
|
||||
separator_bg = "#000000"
|
||||
|
||||
[icons]
|
||||
icons = "custom-icons"
|
||||
|
||||
[[block]]
|
||||
block = "focused_window"
|
||||
[block.format]
|
||||
full = " $title.str(max_w:50) |"
|
||||
short = " $title.str(max_w:100) |"
|
||||
|
||||
[[block]]
|
||||
block = "uptime"
|
||||
interval = 60
|
||||
Reference in New Issue
Block a user