First Commit

debian/changelog

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+rakuos-settings (1.0.2-1-1rakuos8) unstable; urgency=medium
+
+  * Adding default grub
+  * Porting things over from cachyos-settings
+
+ -- Tohur <tohur@tohur.xyz>  Wed, 12 Nov 2025 23:22:44 -0700
+
+rakuos-settings (1.0.1-2-1rakuos1) unstable; urgency=medium
+
+  * Initial release of RakuOS settings package.
+
+ -- Joshua Webb <tohur@tohur.xyz>  Thu, 06 Nov 2025 22:40:00 -0700

debian/control

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+Source: rakuos-settings
+Section: metapackages
+Priority: optional
+Maintainer: RakuOS Team <tohur@tohur.xyz>
+Build-Depends: debhelper-compat (= 13),
+Standards-Version: 4.6.2
+
+Package: rakuos-settings
+Architecture: all
+Replaces: systemd-zram-generator
+Depends: ${misc:Depends}, systemd-zram-generator, libzstd1, rtkit
+Description: Core OS config for RakuOS

debian/copyright

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+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: RakuOS Branding
+Upstream-Contact: Joshua Webb <contact@rakuos.org>
+Source: https://rakuos.org/
+
+Files: *
+Copyright: 2025 Joshua Webb
+License: GPL-3+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 3 or later.

debian/install

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+etc/* etc/
+usr/* usr/

debian/postinst

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+#!/bin/sh
+
+set -e
+
+systemctl enable pci-latency.service

debian/rules

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+#!/usr/bin/make -f
+# Simple dh (debhelper) build rules file
+%:
+	dh $@
+
+override_dh_fixperms:
+	dh_fixperms
+	chmod 755 debian/rakuos-settings/usr/bin/kerver
+	chmod u+x debian/rakuos-settings/usr/bin/kerver
+	chmod 755 debian/rakuos-settings/usr/bin/pci-latency
+	chmod u+x debian/rakuos-settings/usr/bin/pci-latency
+	chmod 755 debian/rakuos-settings/usr/bin/topmem
+	chmod u+x debian/rakuos-settings/usr/bin/topmem
+	chmod 755 debian/rakuos-settings/usr/bin/zink-run
+	chmod u+x debian/rakuos-settings/usr/bin/zink-run

debian/source/format

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+3.0 (native)

etc/apt/apt.conf.d/01rakuos

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+APT::Default-Release "rakuos";

etc/apt/apt.conf.d/90update-grub

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+DPkg::Post-Invoke {
+    "if [ -x /usr/sbin/update-grub ]; then /usr/sbin/update-grub || true; fi";
+};

etc/security/limits.d/20-audio.conf

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+@audio - rtprio 99

usr/bin/kerver

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+#!/usr/bin/env bash
+
+cat << EOF
+Check kernel version:
+
+$(cat /proc/version && uname -a)
+
+
+Check x86_64 support:
+
+$(/lib64/ld-linux-x86-64.so.2 --help | grep "(supported, searched)")
+
+
+Check CPU config:
+
+$(zgrep -iE 'CONFIG_(GENERIC_CPU(=| is)|X86_64_VERSION|MZEN|MBULLDOZER|MPILEDRIVER|MSTREAMROLLER|MEXCAVATOR|MBOBCAT|MJAGUAR|MK10|MK8SSE3|MATOM|MGOLDMONTPLUS|MSKYLAKE2|MIVYBRIDGE|MICELAKE|MNATIVE_INTEL|MNATIVE_AMD|X86_NATIVE_CPU)' /proc/config.gz)
+
+
+Current disk schedulers:
+
+$(for disk in /sys/block/*/
+do [ -f "$disk/queue/scheduler" ] \
+    && echo "$(basename "$disk"): $(cat "$disk/queue/scheduler")"
+done)
+
+Check available schedulers:
+
+$(journalctl --output cat -k | grep -i scheduler)
+EOF

usr/bin/pci-latency

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+#!/usr/bin/env sh
+# This script is designed to improve the performance and reduce audio latency
+# for sound cards by setting the PCI latency timer to an optimal value of 80
+# cycles. It also resets the default value of the latency timer for other PCI
+# devices, which can help prevent devices with high default latency timers from
+# causing gaps in sound.
+
+# Check if the script is run with root privileges
+if [ "$(id -u)" -ne 0 ]; then
+  echo "Error: This script must be run with root privileges." >&2
+  exit 1
+fi
+
+# Reset the latency timer for all PCI devices
+setpci -v -s '*:*' latency_timer=20
+setpci -v -s '0:0' latency_timer=0
+
+# Set latency timer for all sound cards
+setpci -v -d "*:*:04xx" latency_timer=80

usr/bin/topmem

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+#!/usr/bin/env lua
+local f, concat, sort = string.format, table.concat, table.sort
+local found, uv = pcall(require, 'luv')
+
+local function die(err, ...)
+    print(err:format(...))
+    os.exit(1)
+end
+
+if not found then
+    die("lua-luv dependency is missing, please install it from repositories")
+end
+
+local function printf(pattern, ...)
+    print(pattern:format(...))
+end
+
+-- Patterns
+local pid_pattern = "[0-9]+"
+local ksm_profit_pattern = "ksm_process_profit%s*([0-9]+)"
+local vm_rss_pattern = "VmRSS:%s*([0-9]+)"
+local vm_swap_pattern = "VmSwap:%s*([0-9]+)"
+
+local function get_process_values(pid)
+    local path = concat({ "/proc", pid, "status" }, "/")
+    local file = io.open(path)
+
+    if not file then
+        return nil
+    end
+
+    local rss, swap
+    local line = file:read()
+    while line do
+        if rss == nil then
+            rss = line:match(vm_rss_pattern)
+        elseif swap == nil then
+            swap = line:match(vm_swap_pattern)
+        else
+            break
+        end
+        line = file:read()
+    end
+    file:close()
+    return tonumber(rss), tonumber(swap)
+end
+
+local function get_process_ksm_profit(pid)
+    local file = io.open(concat({ "/proc", pid, "ksm_stat" }, "/"))
+
+    if not file then
+        return 0
+    end
+
+    local stat = file:read("*a")
+    local profit = stat:match(ksm_profit_pattern)
+
+    file:close()
+
+    if not profit then
+        return 0
+    end
+
+    return tonumber(profit)
+end
+
+local function get_process_first_arg(pid)
+    local file = io.open(concat({ "/proc", pid, "cmdline" }, "/"))
+
+    if not file then
+        return nil
+    end
+
+    local cmdline = file:read("*all")
+    file:close()
+
+    return cmdline:match("([^%z]+)")
+end
+
+local function convert_hashmap_table(map)
+    local new_hashmap = {}
+    for key, value in pairs(map) do
+        new_hashmap[#new_hashmap + 1] = { value[1], value[2], value[3], key }
+    end
+
+    return new_hashmap
+end
+
+local function get_process_map(sort_by)
+    local map = {}
+    local processes = uv.fs_scandir("/proc")
+    local pid, ftype = uv.fs_scandir_next(processes)
+
+    while pid do
+        if pid:match(pid_pattern) then
+            if ftype == "directory" then
+                local rss, swap = get_process_values(pid)
+                local name = get_process_first_arg(pid)
+                local ksm_profit = get_process_ksm_profit(pid)
+                if name and rss then
+                    if map[name] then
+                        map[name][1] = map[name][1] + rss
+                        map[name][2] = map[name][2] + swap
+                        map[name][3] = map[name][3] + ksm_profit
+                    else
+                        map[name] = { rss, swap, ksm_profit }
+                    end
+                end
+            end
+        end
+        pid, ftype = uv.fs_scandir_next(processes)
+    end
+    map = convert_hashmap_table(map)
+    sort(map, function(a, b) return (a[sort_by] > b[sort_by]) end)
+    return map
+end
+
+local function truncate(str)
+    if #str > 25 then
+        return str:sub(1, 25) .. "..."
+    else
+        return str
+    end
+end
+
+local function get_filename(path)
+    local lastSlash = path:find("/[^/]*$")
+    if lastSlash then
+        return path:sub(lastSlash + 1)
+    else
+        return path
+    end
+end
+
+local function print_top(size, sort_by)
+    local map = get_process_map(sort_by)
+    printf("%-9s %35s %-9s %-s", "MEMORY", "Top " .. size .. " processes       ", "SWAP", "KSM")
+    for i = 1, size do
+        local entry = map[i]
+        if entry then
+            printf(
+                "%-9s %-35s %-9s %-s",
+                f("%.0f", entry[1] / 1024) .. "M",
+                truncate(get_filename(entry[4])),
+                f("%.0f", entry[2] / 1024) .. "M",
+                f("%.0f", entry[3] / 1024 / 1024) .. "M"
+            )
+        end
+    end
+end
+
+local function print_help()
+    print([[
+Shows names of the top 10 (or N) processes by memory consumption
+
+Usage: topmem [OPTIONS] [N]
+
+Arguments:
+  [N] [default: 10]
+
+Options:
+  -s, --sort <TYPE>  Column to sort by [possible values: rss (default), swap, ksm]
+  -h, --help         Show this message]]
+)
+    os.exit(0)
+end
+
+local function main()
+    local sort_types = {
+        ["rss"] = 1,
+        ["swap"] = 2,
+        ["ksm"] = 3
+    }
+    local sort_by = sort_types["rss"]
+    local size
+    local i = 1
+    while i < #arg + 1 do
+        if arg[i] == "--sort" or arg[i] == "-s" or arg[i]:match("--sort=*") then
+            local criteria
+            local shift = true
+
+            for value in string.gmatch(arg[i], "([^=]+)") do
+                if value ~= "--sort" and value ~= "-s" then
+                    criteria = value
+                    shift = false
+                    break
+                end
+            end
+
+            criteria = criteria or arg[i + 1]
+            if not criteria then
+                die("Column to sort by is not specified")
+            end
+
+            if not sort_types[criteria] then
+                die("Wrong sorting criterion. Only available: rss, swap, ksm.")
+            else
+                sort_by = sort_types[criteria]
+                if shift then
+                    i = i + 1
+                end
+            end
+        elseif arg[i] == "--help" or arg[i] == "-h" then
+            print_help()
+        else
+            local status, value = pcall(tonumber, arg[i])
+            if not status then
+                die("The argument must be a number")
+            else
+                size = value
+            end
+        end
+        i = i + 1
+    end
+
+    print_top(size or 10, sort_by)
+end
+
+main()

usr/bin/zink-run

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+#!/usr/bin/env bash
+export MESA_LOADER_DRIVER_OVERRIDE=zink
+export GALLIUM_DRIVER=zink
+export __GLX_VENDOR_LIBRARY_NAME=mesa
+export __EGL_VENDOR_LIBRARY_FILENAMES=/usr/share/glvnd/egl_vendor.d/50_mesa.json
+exec "$@"

usr/lib/NetworkManager/conf.d/dns.conf

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+[main]
+dns=systemd-resolved

usr/lib/modprobe.d/amdgpu.conf

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+# Force using of the amdgpu driver for Southern Islands (GCN 1.0+) and Sea
+# Islands (GCN 2.x) generations.
+options amdgpu si_support=1 cik_support=1
+options radeon si_support=0 cik_support=0

usr/lib/modprobe.d/blacklist.conf

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+# Blacklist the Intel TCO Watchdog/Timer module
+blacklist iTCO_wdt
+
+# Blacklist the AMD SP5100 TCO Watchdog/Timer module (Required for Ryzen cpus)
+blacklist sp5100_tco

usr/lib/modprobe.d/nvidia.conf

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+#
+# NVreg_UsePageAttributeTable=1 (Default 0) - Activating the better memory
+# management method (PAT). The PAT method creates a partition type table at a
+# specific address mapped inside the register and utilizes the memory
+# architecture and instruction set more efficiently and faster. If your system
+# can support this feature, it should improve CPU performance.
+#
+# NVreg_InitializeSystemMemoryAllocations=0 (Default 1) - Disables clearing
+# system memory allocation before using it for the GPU. Potentially improves
+# performance, but at the cost of increased security risks. Write "options
+# nvidia NVreg_InitializeSystemMemoryAllocations=1" in
+# /etc/modprobe.d/nvidia.conf, if you want to return the default value. Note:
+# It is possible to use more memory (?)
+#
+# NVreg_DynamicPowerManagement=0x02 - Enables the use of dynamic power
+# management for Turing generation mobile cards, allowing the dGPU to be
+# powered down during idle time.
+#
+options nvidia NVreg_UsePageAttributeTable=1 \
+    NVreg_InitializeSystemMemoryAllocations=0 \
+    NVreg_DynamicPowerManagement=0x02

usr/lib/modules-load.d/i2c-dev.conf

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+# Load i2c-dev.ko at boot
+i2c-dev

usr/lib/modules-load.d/i2c-piix4.conf

@@ -0,0 +1,2 @@
+# Load i2c-piix4.ko at boot
+i2c-piix4

usr/lib/modules-load.d/ntsync.conf

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+ntsync

usr/lib/sysctl.d/99-bore-scheduler.conf

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+### Use only if you want to change the default values!
+### For more information look here: https://github.com/firelzrd/bore-scheduler#readme
+
+### Additional settings for BORE Scheduler (Work only if the BORE scheduler is enabled!)
+### So make sure that kernel.sched_bore has a value of 1
+
+# sched_burst_cache_lifetime (range: 0 - 4294967295, default: 75000000)
+#kernel.sched_burst_cache_lifetime = 75000000
+
+# sched_burst_fork_atavistic (range: 0 - 3, default: 2)
+#kernel.sched_burst_fork_atavistic = 2
+
+# sched_burst_penalty_offset (range: 0 - 64, default: 22)
+#kernel.sched_burst_penalty_offset = 22
+
+# sched_burst_penalty_scale (range: 0 - 4095, default: 1280)
+#kernel.sched_burst_penalty_scale = 1280
+
+# sched_burst_smoothness  (range: 1 - 255, default: 20)
+#kernel.sched_burst_smoothness  = 20
+
+# sched_burst_exclude_kthreads (range: 0 - 1, default: 1)
+#kernel.sched_burst_exclude_kthreads = 1
+
+# sched_burst_parity_threshold (range: u8, default: 2)
+#kernel.sched_burst_parity_threshold = 2

usr/lib/sysctl.d/99-cachyos-settings.conf

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+# The sysctl swappiness parameter determines the kernel's preference for pushing anonymous pages or page cache to disk in memory-starved situations.
+# A low value causes the kernel to prefer freeing up open files (page cache), a high value causes the kernel to try to use swap space,
+# and a value of 100 means IO cost is assumed to be equal.
+vm.swappiness = 100
+
+# The value controls the tendency of the kernel to reclaim the memory which is used for caching of directory and inode objects (VFS cache).
+# Lowering it from the default value of 100 makes the kernel less inclined to reclaim VFS cache (do not set it to 0, this may produce out-of-memory conditions)
+vm.vfs_cache_pressure = 50
+
+# Contains, as bytes, the number of pages at which a process which is
+# generating disk writes will itself start writing out dirty data.
+vm.dirty_bytes = 268435456
+
+# page-cluster controls the number of pages up to which consecutive pages are read in from swap in a single attempt.
+# This is the swap counterpart to page cache readahead. The mentioned consecutivity is not in terms of virtual/physical addresses,
+# but consecutive on swap space - that means they were swapped out together. (Default is 3)
+# increase this value to 1 or 2 if you are using physical swap (1 if ssd, 2 if hdd)
+vm.page-cluster = 0
+
+# Contains, as bytes, the number of pages at which the background kernel
+# flusher threads will start writing out dirty data.
+vm.dirty_background_bytes = 67108864
+
+# The kernel flusher threads will periodically wake up and write old data out to disk.  This
+# tunable expresses the interval between those wakeups, in 100'ths of a second (Default is 500).
+vm.dirty_writeback_centisecs = 1500
+
+# This action will speed up your boot and shutdown, because one less module is loaded. Additionally disabling watchdog timers increases performance and lowers power consumption
+# Disable NMI watchdog
+kernel.nmi_watchdog = 0
+
+# Enable the sysctl setting kernel.unprivileged_userns_clone to allow normal users to run unprivileged containers.
+kernel.unprivileged_userns_clone = 1
+
+# To hide any kernel messages from the console
+kernel.printk = 3 3 3 3
+
+# Restricting access to kernel pointers in the proc filesystem
+kernel.kptr_restrict = 2
+
+# Disable Kexec, which allows replacing the current running kernel.
+kernel.kexec_load_disabled = 1
+
+# Increase netdev receive queue
+# May help prevent losing packets
+net.core.netdev_max_backlog = 4096
+
+# Set size of file handles and inode cache
+fs.file-max = 2097152

usr/lib/systemd/journald.conf.d/00-journal-size.conf

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+[Journal]
+SystemMaxUse=50M

usr/lib/systemd/system.conf.d/00-timeout.conf

@@ -0,0 +1,3 @@
+[Manager]
+DefaultTimeoutStartSec=15s
+DefaultTimeoutStopSec=10s

usr/lib/systemd/system.conf.d/10-limits.conf

@@ -0,0 +1,2 @@
+[Manager]
+DefaultLimitNOFILE=2048:2097152

usr/lib/systemd/system/pci-latency.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Adjust latency timers for PCI peripherals
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/pci-latency
+
+[Install]
+WantedBy=multi-user.target

usr/lib/systemd/system/rtkit-daemon.service.d/override.conf

@@ -0,0 +1,2 @@
+[Service]
+LogLevelMax=info

usr/lib/systemd/system/user@.service.d/delegate.conf

@@ -0,0 +1,2 @@
+[Service]
+Delegate=cpu cpuset io memory pids 

usr/lib/systemd/timesyncd.conf.d/10-timesyncd.conf

@@ -0,0 +1,8 @@
+[Time]
+NTP=time.cloudflare.com
+FallbackNTP=time.google.com 0.arch.pool.ntp.org 1.arch.pool.ntp.org 2.arch.pool.ntp.org 3.arch.pool.ntp.org
+#RootDistanceMaxSec=5
+#PollIntervalMinSec=32
+#PollIntervalMaxSec=2048
+#ConnectionRetrySec=30
+#SaveIntervalSec=60

usr/lib/systemd/user.conf.d/10-limits.conf

@@ -0,0 +1,2 @@
+[Manager]
+DefaultLimitNOFILE=1024:1048576

usr/lib/systemd/zram-generator.conf

@@ -0,0 +1,5 @@
+[zram0] 
+compression-algorithm = zstd
+zram-size = ram
+swap-priority = 100
+fs-type = swap

usr/lib/tmpfiles.d/coredump.conf

@@ -0,0 +1,2 @@
+# Clear all coredumps that were created more than 3 days ago
+d /var/lib/systemd/coredump 0755 root root 3d

usr/lib/tmpfiles.d/thp-shrinker.conf

@@ -0,0 +1,6 @@
+# THP Shrinker has been added in the 6.12 Kernel
+# Default Value is 511
+# THP=always policy vastly overprovisions THPs in sparsely accessed memory areas, resulting in excessive memory pressure and premature OOM killing
+# 409 means that any THP that has more than 409 out of 512 (80%) zero filled filled pages will be split.
+# This reduces the memory usage, when THP=always used and the memory usage goes down to around the same usage as when madvise is used, while still providing an equal performance improvement
+w! /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none - - - - 409

usr/lib/tmpfiles.d/thp.conf

@@ -0,0 +1,3 @@
+# Improve performance for applications that use tcmalloc
+# https://github.com/google/tcmalloc/blob/master/docs/tuning.md#system-level-optimizations
+w! /sys/kernel/mm/transparent_hugepage/defrag - - - - defer+madvise

usr/lib/udev/rules.d/20-audio-pm.rules

@@ -0,0 +1,17 @@
+# Disables power saving capabilities for snd-hda-intel when device is not
+# running on battery power. This is needed because it prevents audio cracks on
+# some hardware.
+ACTION=="add", SUBSYSTEM=="sound", KERNEL=="card*", DRIVERS=="snd_hda_intel", TEST!="/run/udev/snd-hda-intel-powersave", \
+    RUN+="/usr/bin/bash -c 'touch /run/udev/snd-hda-intel-powersave; \
+        [[ $$(cat /sys/class/power_supply/BAT0/status 2>/dev/null) != \"Discharging\" ]] && \
+        echo $$(cat /sys/module/snd_hda_intel/parameters/power_save) > /run/udev/snd-hda-intel-powersave && \
+        echo 0 > /sys/module/snd_hda_intel/parameters/power_save'"
+
+SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", TEST=="/sys/module/snd_hda_intel", \
+    RUN+="/usr/bin/bash -c 'echo $$(cat /run/udev/snd-hda-intel-powersave 2>/dev/null || \
+        echo 10) > /sys/module/snd_hda_intel/parameters/power_save'"
+
+SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", TEST=="/sys/module/snd_hda_intel", \
+    RUN+="/usr/bin/bash -c '[[ $$(cat /sys/module/snd_hda_intel/parameters/power_save) != 0 ]] && \
+        echo $$(cat /sys/module/snd_hda_intel/parameters/power_save) > /run/udev/snd-hda-intel-powersave; \
+        echo 0 > /sys/module/snd_hda_intel/parameters/power_save'"

usr/lib/udev/rules.d/30-zram.rules

@@ -0,0 +1,14 @@
+# When used with ZRAM, it is better to prefer page out only anonymous pages,
+# because it ensures that they do not go out of memory, but will be just
+# compressed. If we do frequent flushing of file pages, that increases the
+# percentage of page cache misses, which in the long term gives additional
+# cycles to re-read the same data from disk that was previously in page cache.
+# This is the reason why it is recommended to use high values from 100 to keep
+# the page cache as hermetic as possible, because otherwise it is "expensive"
+# to read data from disk again. At the same time, uncompressing pages from ZRAM
+# is not as expensive and is usually very fast on modern CPUs.
+#
+# Also it's better to disable Zswap, as this may prevent ZRAM from working
+# properly or keeping a proper count of compressed pages via zramctl.
+ACTION=="change", KERNEL=="zram0", ATTR{initstate}=="1", SYSCTL{vm.swappiness}="150", \
+    RUN+="/bin/sh -c 'echo N > /sys/module/zswap/parameters/enabled'"

usr/lib/udev/rules.d/40-hpet-permissions.rules

@@ -0,0 +1,2 @@
+KERNEL=="rtc0", GROUP="audio"
+KERNEL=="hpet", GROUP="audio"

usr/lib/udev/rules.d/50-sata.rules

@@ -0,0 +1,4 @@
+# SATA Active Link Power Management
+ACTION=="add", SUBSYSTEM=="scsi_host", KERNEL=="host*", \
+    ATTR{link_power_management_policy}=="*", \
+    ATTR{link_power_management_policy}="max_performance"

usr/lib/udev/rules.d/60-ioschedulers.rules

@@ -0,0 +1,11 @@
+# HDD
+ACTION=="add|change", KERNEL=="sd[a-z]*", ATTR{queue/rotational}=="1", \
+    ATTR{queue/scheduler}="bfq"
+
+# SSD
+ACTION=="add|change", KERNEL=="sd[a-z]*|mmcblk[0-9]*", ATTR{queue/rotational}=="0", \
+    ATTR{queue/scheduler}="mq-deadline"
+
+# NVMe SSD
+ACTION=="add|change", KERNEL=="nvme[0-9]*", ATTR{queue/rotational}=="0", \
+    ATTR{queue/scheduler}="none"

usr/lib/udev/rules.d/69-hdparm.rules

@@ -0,0 +1,2 @@
+ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="1", \
+    ATTRS{id/bus}=="ata", RUN+="/usr/bin/hdparm -B 254 -S 0 /dev/%k"

usr/lib/udev/rules.d/71-nvidia.rules

@@ -0,0 +1,9 @@
+# Enable runtime PM for NVIDIA VGA/3D controller devices on driver bind
+ACTION=="add|bind", SUBSYSTEM=="pci", DRIVERS=="nvidia", \
+    ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", \
+    TEST=="power/control", ATTR{power/control}="auto"
+
+# Disable runtime PM for NVIDIA VGA/3D controller devices on driver unbind
+ACTION=="remove|unbind", SUBSYSTEM=="pci", DRIVERS=="nvidia", \
+    ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", \
+    TEST=="power/control", ATTR{power/control}="on"

usr/lib/udev/rules.d/99-cpu-dma-latency.rules

@@ -0,0 +1 @@
+DEVPATH=="/devices/virtual/misc/cpu_dma_latency", OWNER="root", GROUP="audio", MODE="0660"

usr/share/X11/xorg.conf.d/20-touchpad.conf

@@ -0,0 +1,7 @@
+Section "InputClass"
+     Identifier "libinput touchpad catchall"
+     MatchIsTouchpad "on"
+     MatchDevicePath "/dev/input/event*"
+     Driver "libinput"
+     Option "Tapping" "True"
+EndSection