Record Void Linux Carbon and desktop integration research

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# VoidKontrol: Void Linux runtime, access, and packaging research
Research date: 2026-09-21. Decision ticket: [Establish the Void Linux runtime,
permissions, and packaging requirements](https://git.bongbetic.com/xavierk/voidkontrol/issues/2).
This is a researched platform contract and a set of recommendations, not an
implemented or hardware-tested controller. The user's accepted boundary is the
currently observed USB presentation first, with other modes admitted only after
separate validation; firmware flashing and factory-reset UI remain outside v1.
The supplied [control specification](../../KREO-SWARM75-LINUX-CONTROL-SPEC.md)
owns protocol requirements. No packages were installed, services restarted,
udev rules changed, or device reports exchanged during this research.
## Findings that change the starting assumptions
1. **Hidraw support is already present on this host.** The running kernel reports
`CONFIG_HIDRAW=y`; the Swarm has `/dev/hidraw4` and `/dev/hidraw5`, with interface
1 at the latter path. Both are currently `0600 root:root`. The present barrier
is access policy and protocol evidence, not a demonstrated need to replace the
kernel. Node numbers are observations, never identifiers to hard-code.
See the local evidence below and [Linux hidraw documentation][hidraw].
2. **`CONFIG_HIDRAW=m` is not a valid alternative.** `HIDRAW` is a Boolean Kconfig
option; `hidraw.o` is linked into the HID core, which itself can be a module.
Consequently, failure of `modprobe hidraw` does not diagnose missing support.
The supplied spec's earlier inference required a dated correction, now
recorded in the [device evidence](../evidence/2026-09-21-swarm75.md).
[Linux Kconfig][kconfig], [HID Makefile][hidmake]
3. **Void-native does not require a permanently root daemon.** A dedicated
system account can receive access to the matching hidraw node and run under
runit's `chpst`. This preserves the spec's privileged service boundary while
restricting its privilege to device access and its private data directory.
It is a design recommendation grounded in [Void service packaging][manual]
and [chpst][chpst], not a claim that the daemon has been built.
4. **Distro availability and upstream buildability differ.** WebKitGTK 4.1 and
Qt 6 have relevant current Void templates, including musl handling. The
current `electron35` template is explicitly marked broken, even though the
host's cached repository index lists an Electron binary. Noctalia installed
here is locally packaged; the inspected upstream Void tree contains no
Noctalia template. [Package inventory](#ui-runtime-and-libc-options), local
evidence below.
## Evidence and method
The required Context7 lookup resolved `Void Linux` to the official
`/void-linux/void-docs` collection, then fetched runit service and session/seat
management documentation. Those results were checked against complete relevant
Void Handbook pages, the Void packaging manual, package source, Linux source,
and upstream eudev/runit/polkit specifications. There was no Context7 quota
failure or fallback to uncited recollection.
Package claims below refer to upstream `void-linux/void-packages` commit
[`954278b83979958bcfdff05f22cf699c9dc20346`][vp] retrieved on the research date.
The recursive tree response was not truncated. This is a source snapshot, not
a promise that every architecture's current binary mirror is synchronized.
Read-only local evidence, collected in the active session:
| Check | Observed result | Implication |
| --- | --- | --- |
| `/etc/os-release`, `uname -a`, `ps -p 1 -o comm=` | Void; x86_64; Linux `7.2.6_1`; PID 1 `runit` | This machine can validate x86_64 glibc/runit, not other targets. |
| `xbps-query -p pkgver glibc` / installed package listing | `glibc-2.41_1` | Do not describe this as a musl test. |
| `zcat /proc/config.gz` | `CONFIG_HIDRAW=y`, `CONFIG_HID=m`, `CONFIG_HID_GENERIC=m`, `CONFIG_USB_HID=m` | Hidraw is compiled into the loaded HID core. |
| `lsusb -d 258a:010c`; `/sys/class/hidraw/*/device/uevent` | `258a:010c`, `BY Tech Kreo Swarm`; hidraw4 interface 0; hidraw5 interface 1; `hid-generic` | Normal kernel HID ownership is intact. No feature ioctl was performed. |
| `ls -l /dev/hidraw4 /dev/hidraw5` | Both `crw------- root root`, no ACL indicator | The ordinary desktop user has no device access through these nodes. |
| `udevadm info --query=property --name=/dev/hidraw5` | Only `DEVNAME`, `DEVPATH`, `MAJOR`, `MINOR`, `SUBSYSTEM` | Do not assume `ID_VENDOR_ID` or `ID_USB_INTERFACE_NUM` is already populated on this hidraw node. |
| `udevadm info --attribute-walk --name=/dev/hidraw5` | `bInterfaceNumber=01` on the USB interface; VID/PID/product on the higher USB device | A single rule combining all those `ATTRS` matches cannot work; use separate parent-matching stages. |
| `loginctl show-session 2` | Local, active, `seat0`, Wayland; `LockedHint=no` | Active-session authorization can be tested here. This is not a seatd-only setup. |
| Selected environment | `XDG_CURRENT_DESKTOP=niri`, `XDG_RUNTIME_DIR=/run/user/1000`, `WAYLAND_DISPLAY=wayland-1` | UI runs in a graphical user session; system daemon must not inherit these assumptions. |
| Installed package listing / `/var/service/` | runit `2.3.1_1`, eudev `3.2.14_2`, elogind `252.39_1`, D-Bus `1.16.2_2`, polkit `127_1`; dbus and udevd enabled | Elogind is operational despite no explicit elogind service symlink, consistent with D-Bus activation. |
| Installed UI packages | GTK3 `3.24.52_1`, GTK4 `4.22.4_1`, Qt6 `6.11.2_1`, `libwebkitgtk60-2.50.4_1`, IBM Plex fonts | GTK4 WebKit being installed does not satisfy a GTK3 WebKit 4.1 dependency. |
| Installed desktop packages | niri `26.04_1`, noctalia `5.1.0_1` | Version-specific desktop integration remains a separate research decision. |
| `xbps-query -p repository noctalia` | Local `void-packages/hostdir/binpkgs` repository | This installation is not proof of an official Noctalia package. |
| `xbps-query -Rs webkit` / `electron35` | Cached index lists `libwebkit2gtk41-2.50.4_1` and `electron35-35.7.2_1` | Index metadata only; no installation or fresh mirror synchronization was performed. |
## Service lifetime and privilege
Void uses runit; packaged service directories live in `/etc/sv/`, and linking a
directory into `/var/service/` enables immediate start and subsequent supervision.
The service's executable `run` script must `exec` a foreground process. A `check`
script reports readiness, `finish` runs after termination, and a `log` subservice
can receive output. An administrative `down` file prevents automatic start.
[Void services][services]
Recommended service contract:
- Keep one system service, provisionally `voidkontrold` (the spec calls the
responsibility `swarm75d`). The UI and CLI are ordinary users. The service
runs as `_voidkontrol:_voidkontrol`, with no membership in `input`, `video`,
`wheel`, or a general hardware group. `chpst -u` removes inherited
supplementary groups. A root supervisor creating a runtime directory does
not require the long-lived service process to be root. [chpst][chpst]
- Have the `run` script create `/run/voidkontrol` with explicit owner and mode,
then change credentials and `exec` the daemon. Permanent private state belongs
under `/var/lib/voidkontrol`, created by packaging. This follows Void's
distinction between service-created volatile directories and `make_dirs`
for persistent directories. [Void packaging manual][manual]
- With D-Bus IPC, the package's system-bus policy should grant only the service
account ownership of the selected bus name. Startup waits for/retries the
system bus; do not add a second D-Bus process or depend on a user's session
bus. With a Unix socket instead, use kernel-authenticated peer credentials
and an equivalent per-call authorization check. The final IPC choice is a
decision, not a requirement imposed by Void. [Void sessions][sessions]
- Readiness means the daemon can serve a diagnostic/capability request even
when the keyboard is unplugged. Device absence should be an application
state, not a restart loop. A system service must work without niri, Noctalia,
`DISPLAY`, or `XDG_RUNTIME_DIR`; runit's clean environment makes this
separation particularly important. [Void services][services]
- Handle `SIGTERM`: stop accepting mutations, bound the wait for an outstanding
transaction, durably record any uncertain outcome, close the device and IPC,
and exit. `sv down` sends TERM and CONT; `sv stop` waits by default for seven
seconds, and force variants may kill on timeout. Do not rely on `finish` to
restore hardware or guarantee completion after power loss. [sv manual][sv]
- Let runit restart a crashed daemon, but obey the spec's no-auto-write rule:
an interrupted transaction becomes uncertain and requires fresh readback.
Restart, hotplug, login, wake, and service upgrade must never replay saved
frames or apply a profile automatically. This is a project invariant from
the supplied control spec, not distro behavior.
- Use bounded logs with an explicit logging setup. Void installs no syslog
daemon by default, while the packaging `vsv` helper creates a `vlogger`
subservice by default. Decide between that documented syslog prerequisite
and an explicit `svlogd` log subservice; do not silently depend on journald.
Logs should contain transaction metadata/errors, not keystrokes, macro
contents, complete backups, or raw transport buffers. [Void logging][logging],
[vsv documentation][manual]
## Device discovery and narrow udev access
Linux recommends discovering hidraw nodes through libudev instead of assuming a
stable `/dev/hidrawN`; hidraw feature-report ioctls use the control endpoint.
For the spec's report ID 6, a 519-byte payload requires a **520-byte ioctl
buffer**, whose first byte is report ID 6. This is a framing distinction, not
permission to send the currently unverified command payloads. Plain hidraw
`read()` receives interrupt input reports, and plain `write()` is not a
substitute for the specified feature-report exchange. [Linux hidraw][hidraw]
Required project invariants remain: no input-device grabs, no kernel HID
detach/unbind, no access to the unrelated 5-byte feature report, no arbitrary
raw-report RPC, and validation of VID/PID, product, interface, usage collection,
report IDs/sizes, and authenticated device identity before writes. A udev rule
can reduce access, but cannot replace that protocol gate or physical-layout
validation. Interface 1 also contains keyboard input reports; daemon code must
not turn device access into a general key-event collector.
**Recommended access model:** give the service account access to only the
matching interface and mediate all users through IPC. Do not grant ordinary
users membership in the service account's group or install `MODE="0666"`.
Do not add `TAG+="uaccess"` for this controller: elogind processes that tag to
grant active-user device access, which would let a GUI or unrelated user
process bypass the policy-owning daemon. Existing administrator-added device
ACLs/rules must be diagnosed; this package cannot prevent root from opening
the device. [elogind seat rule][seat-rule], [eudev rule language][udev]
The following is a **candidate rule design for later isolated testing**, not a
rule installed or verified with udev on this host:
```udev
# Example package path: /usr/lib/udev/rules.d/70-voidkontrol.rules
SUBSYSTEM!="hidraw", GOTO="voidkontrol_end"
ACTION=="remove", GOTO="voidkontrol_end"
ENV{.VOIDKONTROL_MATCH}=""
ATTRS{idVendor}=="258a", ATTRS{idProduct}=="010c", ATTRS{product}=="Kreo Swarm", ENV{.VOIDKONTROL_MATCH}="1"
ENV{.VOIDKONTROL_MATCH}=="1", ATTRS{bInterfaceNumber}=="01", GROUP="_voidkontrol", MODE="0660"
LABEL="voidkontrol_end"
```
The first matching stage evaluates attributes on the USB device; the second
evaluates the interface ancestor. Eudev requires all parent matches within a
single rule to match the same ancestor. Dot-prefixed temporary properties are
not stored in the database or exported. The rule intentionally does not assume
`ID_USB_INTERFACE_NUM` is populated, since it is absent in this host's hidraw
properties. [eudev rule language][udev], local attribute walk above.
A service-held lock prevents two VoidKontrol instances from controlling the
same keyboard, but is not a claim of kernel-enforced exclusivity against root
or another driver. Root/administrator access remains outside the ordinary-user
isolation boundary. Reconnect must rediscover and revalidate the descriptor;
USB topology and a hidraw index are not durable identity. The lack of a serial
number makes multiple identical devices a separate identity decision.
## Active-user policy, elogind, and seatd
Void distinguishes the system and per-session D-Bus buses. Elogind manages
login sessions, device access, and power; it needs system D-Bus and may activate
on demand. Seatd only manages seats. Seatd does not replace elogind's login
session information, its uaccess processing, or `XDG_RUNTIME_DIR` creation.
Void recommends elogind or turnstile for runtime-directory management and
documents a seatd plus turnstile alternative. [Void session management][sessions]
Void's current polkit template explicitly builds with
`-Dsession_tracking=elogind`. Polkit defines separate defaults for any caller,
inactive local callers, and active local callers, and provides a system-bus
unique-name subject. These are usable on Void without systemd.
[Void polkit template][polkit-pkg], [polkit policy][polkit], [polkit subject][subject]
Recommended v1 policy, pending the explicit security decision:
- Use the actual authenticated IPC sender, never a UID/PID/username supplied
in request JSON. With system D-Bus, authorize the caller's unique bus name.
The UI, CLI, and Noctalia integration use the same policy.
- Allow customization only from the active local session associated with the
keyboard's seat; deny remote, inactive, and unidentifiable callers. Recheck
authorization when a queued mutation begins, and invalidate it on session
or seat change. Read-only diagnostics may be less restricted; configuration
exports/macros contain user data and need separate privacy treatment.
- If the product must deny writes while locked, check the session lock state
explicitly and test the actual locker integration. `Active=yes` alone does
not express the desired locked-screen policy. This report's host was
unlocked; it did not validate lock-state propagation.
- Do not use a silent "any local group member" fallback when elogind or polkit
is unavailable. Report authorization unavailable, or implement an explicit
administrator-approved alternate mode after a separate security decision.
A group alone does not prove active seat ownership.
An elogind-based session is the smallest evidenced release baseline here.
Supporting a seatd-only session with identical active-user guarantees is an
additional feature requiring an independently specified authority; it is not
an automatic consequence of running on Void. This baseline recommendation does
not require replacing a working user's seat manager or altering the host.
## Storage and XBPS lifecycle
The XDG specification separates config, data, state, cache, and runtime files.
Defaults are `~/.config`, `~/.local/share`, `~/.local/state`, and `~/.cache`;
runtime storage must be user-owned mode 0700, local, and tied to login lifetime.
Only absolute XDG paths are valid. [XDG Base Directory specification][xdg]
Recommended ownership:
| Data | Location/owner recommendation | Reason |
| --- | --- | --- |
| UI preferences, selected theme | `$XDG_CONFIG_HOME/voidkontrol`, desktop user | User preferences follow XDG config semantics. |
| User-created named configurations/exports | `$XDG_DATA_HOME/voidkontrol` or explicitly chosen export path, user | Portable user data; writes performed by the client. |
| UI session/history state | `$XDG_STATE_HOME/voidkontrol`, user | Persisted application state, independent of device transactions. |
| Service backup and pending-transaction journal | `/var/lib/voidkontrol`, `_voidkontrol`, private | The service must not depend on a logged-in user's environment or accept an arbitrary root-write path over IPC. |
| Service locks/socket, if used | `/run/voidkontrol`, explicit private/service policy | Recreated each service start; no backups here. |
| User-only IPC/instance state, if needed | `$XDG_RUNTIME_DIR/voidkontrol`, user, private | Session lifetime and ownership required by XDG. |
Import validates a bounded document supplied by the client; export returns data
to the authorized client, which writes the selected user path. Do not make the
service open arbitrary paths supplied by an unprivileged caller. Restore must
validate schema, device/firmware compatibility, and capability bounds, preserve
a pre-change backup, then use the normal serialized/readback transaction path.
User data must survive an uninstall; a separate explicitly requested purge can
be considered later. These are proposed application rules supporting the
supplied spec's backup/restore requirement.
For native packaging, provide an `xbps-src` template with release source and
checksum, correct `hostmakedepends`/`makedepends`/runtime dependencies, licenses,
desktop entry/icon, daemon/CLI, service directory, udev rule, and chosen IPC
policy. Void templates are Bash descriptions compiled into XBPS packages;
`vsv` installs a service directory and supervision links, not the running
`/var/service` enablement link. Use `system_accounts="_voidkontrol"` with a
dynamically allocated UID/GID, a non-login shell, `make_dirs` for persistent
directories, and `conf_files` for administrator configuration. New system
accounts must use an underscore prefix. [Void packaging manual][manual]
The native build path is a separate `xbps-src` masterdir. The upstream README
documents `./xbps-src pkg <name>` and same-architecture musl builds via
`./xbps-src -A x86_64-musl pkg <name>`. Build as an ordinary user with the
documented chroot method. Pin source and application dependency lockfiles;
record the package tree revision and resolved dependency versions. Do not
claim bit-for-bit reproducibility merely because a template builds.
[void-packages README][vp-readme], [Cargo build style][cargo-style]
Lifecycle requirements and native behavior:
- Install must not implicitly enable hardware writes, start a GUI as root,
enroll all users in a group, or change desktop configuration. Document the
separate service-enable step. Verify account and rule availability before
starting the daemon; bootstrap the current attached device permissions by a
controlled replug or targeted administrator action during installation QA.
- XBPS **does not automatically restart updated services**. Preserve that
behavior and document the required controlled daemon restart; negotiate
IPC version compatibility so a newly installed UI can explain an old
running service. [Void XBPS handbook][xbps]
- Package removal needs an explicit tested service-stop/disable procedure,
including in-flight transaction handling and stale enablement links.
`INSTALL`/`REMOVE` scripts must distinguish real removal from upgrade and
work with alternate installation roots. Avoid unrelated host mutations or
deleting backups. [Void packaging manual][manual]
- Void's system-account trigger disables rather than deletes the service
account on real removal and does not do that for upgrades. The `mkdirs`
trigger uses `rmdir`, not recursive deletion, for package-created
directories. Preserve that non-destructive model. [Account trigger][accounts],
[mkdirs documentation][manual]
- A locally built XBPS repository can be used for initial distribution; a
remotely shared repository and packages must be signed. Official Void
repository acceptance is a separate process, not required for being a
native XBPS package. [Void repositories][repos], [signing documentation][vp-readme]
## UI runtime and libc options
Void officially supports musl as well as glibc, but software portability and
binary availability vary; i686 musl binaries and musl multilib are not offered.
Source-level compatibility is not release qualification. [Void musl handbook][musl]
| Candidate component | Current source evidence | Consequence for VoidKontrol |
| --- | --- | --- |
| Rust daemon | `rust`/`cargo` 1.98.0 templates, explicit musl handling; Void has a Cargo build style | Viable native backend candidate; build dependencies must come from the selected target toolchain. This is not a language decision. [Rust][rust], [Cargo][cargo], [build style][cargo-style] |
| Direct hidraw or HIDAPI hidraw backend | `hidapi` 0.14.0 template uses eudev/libusb build dependencies | If HIDAPI is selected, choose its hidraw backend explicitly and prove no kernel detach path exists. Direct Linux ioctls are also a viable small implementation. [HIDAPI package][hidapi-pkg], [Linux API][hidraw] |
| GTK3/WebKitGTK 4.1 web UI host | `gtk+3` 3.24.52 and `libwebkit2gtk41` 2.50.4; `libwebkit2gtk41-devel` exports `webkitgtk-4.1` headers/pkg-config; Wayland enabled | Available foundation for the Carbon researcher's Tauri option. GTK4's `libwebkitgtk60` is a different ABI, not a substitute. [GTK3][gtk3], [WebKit][webkit] |
| WebKit on musl | x86_64-musl/aarch64-musl target patterns enable JIT; sampling profiler is glibc-only; bubblewrap and xdg-dbus-proxy enabled by default | Musl is not ruled out. Validate the chosen wrapper/build, webview sandbox, accessibility, portal dialogs, and rendered Carbon components on actual Void musl before promising support. Do not disable the webview sandbox to pass tests. [WebKit][webkit] |
| Qt 6 native UI | `qt6-base` 6.11.2, Wayland enabled; separate `qt6-wayland-client`; musl-aware checks; declarative/QML packages present | Technically viable native UI, but Carbon widget fidelity/accessibility implementation cost belongs to the design decision. [Qt base][qt] |
| Qt 6 WebEngine host | Built from `qt6-pdf` 6.11.2; musl compatibility dependency; Widevine disabled on musl; word-size/architecture restrictions | Technically possible web host, but Chromium build/runtime surface is substantially larger; do not assume every Void architecture. [Qt WebEngine source][qtweb] |
| Electron | `electron35` 35.7.2 permits x86_64*/aarch64*, includes musl compatibility, but explicitly `broken` with Python >=3.14 | Existing binary availability is not a reproducible native build path. Resolve packaging and maintenance before choosing it for a native Void v1. [Electron template][electron] |
| niri and Noctalia | Upstream niri 26.04 template enables `dbus,xdp-gnome-screencast`, no systemd feature; Noctalia absent from this source snapshot, locally packaged here | Do not hard-require systemd activation or claim Noctalia is in official Void repositories. Version the supported integration separately. [niri template][niri], [source snapshot][vp], local evidence above |
Recommended release-matrix decision: qualify **x86_64 glibc + runit +
eudev + elogind + system D-Bus + the accepted niri/Noctalia versions** first,
because that is the actual available hardware environment. Keep musl support
architecturally possible and add an x86_64-musl build/smoke lane early. Whether
musl must also block the v1 release is a user-facing support promise still to
settle, not a fact inferred from "Void Linux." Other CPU architectures likewise
require an explicit matrix and evidence; none was tested here.
## Requirements and acceptance matrix
"Required" below means required by the supplied spec/user boundary or necessary
to support the selected native platform contract. "Recommended" marks a design
choice that the decision map must adopt or replace explicitly.
| Area | Requirement or recommendation | Smallest sufficient release proof | Current status |
| --- | --- | --- | --- |
| Kernel | Required: effective HIDRAW support, intact kernel typing | Running config and matched descriptor; normal typing/media/LED behavior before/after control | Config/nodes confirmed; no control test performed |
| Device access | Required: service can open only intended interface under ordinary service credentials | Install rule in disposable setup; interface 1 accessible, interface 0/unrelated devices denied; replug and node renumbering | Two-stage candidate researched, not installed/tested |
| Ownership | Required: one controller transaction at a time | Concurrent UI/CLI clients and attempted second daemon; no interleaving | Not implemented |
| Authorization | Recommended: active local caller/seat policy, fail closed | Active, inactive, remote, locked, multi-seat, denied, and missing authority cases; repeat with queued requests | Elogind active session observed only |
| Service lifecycle | Required: runit foreground process and bounded shutdown; no automatic writes | `sv` start/stop/restart; crash in each transaction phase; no-device boot; reconnect/resume | Native requirements researched |
| Backup/restore | Required: durable complete backup before first write; no uninstall data loss | Interrupted write/restart followed by validated explicit restore; install/upgrade/remove/reinstall | Awaiting protocol and implementation |
| GUI native behavior | Required for promised matrix: Wayland launch as user, no root dialog loop | Clean target installation, app launcher, scaling/input/accessibility, portal file dialogs, service-unavailable state | Runtime packages inventoried only |
| Packaging | Required: self-contained XBPS dependency declaration and reproducible recipe | Clean `xbps-src` build; clean-machine install; upgrade/old-daemon handshake; removal preserving data | No application/template exists yet |
| glibc | Recommended primary release target | Build/package/UI/service tests on x86_64 glibc and real keyboard | Host available |
| musl | Decide release promise; never label supported from compilation alone | Separate musl package build plus real graphical/service/control tests | Source plausibility established; no musl environment tested |
| Noctalia | Required integration for accepted version, independent daemon | Locally reproducible package/runtime provenance and versioned client integration | Locally packaged version observed; desktop researcher owns integration |
## Remaining decisions and implementation evidence
- Adopt the primary glibc/elogind matrix or make musl and/or seatd-only support
release blockers. The research identifies consequences; it cannot choose
this support promise on behalf of the user.
- Choose system D-Bus with existing Void polkit/elogind versus a Unix socket
with equivalent session authorization. Define locked-screen, multiple-session,
same-seat, and administrator override policy explicitly.
- Choose the UI runtime after the Carbon and desktop findings are combined.
Package source evidence supports several options; no GUI stack was built.
- Prove the proposed udev rule against real eudev events in an isolated test
setup, and specify safe package install/update/remove handling. Read-only
inspection was deliberately insufficient to claim that operational proof.
- Set durable transaction/backup format and compatibility/recovery rules;
decide identity behavior for identical no-serial devices. The protocol
capture and authenticated-device evidence remain prerequisites for writes.
[vp]: https://github.com/void-linux/void-packages/tree/954278b83979958bcfdff05f22cf699c9dc20346
[services]: https://docs.voidlinux.org/config/services/index.html
[logging]: https://docs.voidlinux.org/config/services/logging.html
[sessions]: https://docs.voidlinux.org/config/session-management.html
[xbps]: https://docs.voidlinux.org/xbps/index.html
[repos]: https://docs.voidlinux.org/xbps/repositories/index.html
[musl]: https://docs.voidlinux.org/installation/musl.html
[manual]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/Manual.md
[vp-readme]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/README.md
[accounts]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/xbps-triggers/files/system-accounts
[kconfig]: https://github.com/torvalds/linux/blob/master/drivers/hid/Kconfig
[hidmake]: https://github.com/torvalds/linux/blob/master/drivers/hid/Makefile
[hidraw]: https://docs.kernel.org/hid/hidraw.html
[udev]: https://github.com/eudev-project/eudev/blob/master/man/udev.xml
[seat-rule]: https://github.com/elogind/elogind/blob/d7956ed0b1496db7ff404d1765c31cbd9f6c7aab/rules.d/73-seat-late.rules.in
[sv]: https://smarden.org/runit/sv.8.html
[chpst]: https://smarden.org/runit/chpst.8.html
[xdg]: https://specifications.freedesktop.org/basedir/latest/
[polkit]: https://www.freedesktop.org/software/polkit/docs/latest/polkit.8.html
[subject]: https://www.freedesktop.org/software/polkit/docs/latest/PolkitSystemBusName.html
[polkit-pkg]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/polkit/template
[rust]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/rust/template
[cargo]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/cargo/template
[cargo-style]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/common/build-style/cargo.sh
[hidapi-pkg]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/hidapi/template
[gtk3]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/gtk+3/template
[webkit]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/libwebkit2gtk41/template
[qt]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/qt6-base/template
[qtweb]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/qt6-pdf/template
[electron]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/electron35/template
[niri]: https://github.com/void-linux/void-packages/blob/954278b83979958bcfdff05f22cf699c9dc20346/srcpkgs/niri/template
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