Add SystemPulse

[arrifat346afs]

Plugin

• Id: arrifat346afs/systempulse

• New plugin
• Update to an existing plugin (version bumped in plugin.toml)

What it does

A panel that displays live CPU and RAM usage, with a detailed floating panel showing CPU, RAM, Disk, Network, and GPU monitoring.

External dependencies

nvtop

Testing

• Tested on Niri
• Tested on Hyprland
• Tested on Sway
• Tested on another compositor:
• Noctalia version tested against:
• Plugin API level:

Screenshots / Videos

Checklist

Ready-for-review requirement: Every box in this section must be checked. If any statement is not true, keep the
pull request as Draft. An explanation does not replace a required check.

• The directory name matches the part of id after the / in plugin.toml exactly.
• It ships plugin.toml, README.md, thumbnail.webp, and translations/en.json.
• README.md follows the
  README template, documents
  every entry id and dependency, and includes exact panel IPC commands and launcher prefixes where applicable.
• I created thumbnail.webp with the thumbnail generator.
• version follows semver and is bumped in this PR; plugin_api is the oldest API level this plugin requires.
• Every non-English translation in this PR uses a locale supported by Noctalia core, and I can read, write, and
  understand that language well enough to review and maintain it (no unreviewed machine/LLM translations).
• I did not edit catalog.toml; CI generates it.
• This PR touches exactly one plugin directory.

Code review attestation

Plugins run as trusted, unsandboxed Luau in the user's session. Confirm:
Ready-for-review requirement: Every attestation below must be checked.

• The code is readable and not obfuscated, minified, or generated.
• It does not download and execute remote code.
• Every network call, filesystem write, and spawned process is something the description above accounts for.
• I have the right to publish this code under the license declared in plugin.toml.

[ItsLemmy]

1. blocking - systempulse/monitors/disk.luau:63

The parser expects the first field in /proc/diskstats to be a device name followed by numeric
fields. Linux diskstats lines begin with major number, minor number, then device name, for example
"8 0 sda ...". The pattern therefore fails to match normal diskstats lines. parseDiskStats()
returns zero counters, so disk read/write speeds and throughput history remain zero.

2. non-blocking - systempulse/plugin.toml:66

The manifest exposes panel_background_opacity, but no plugin source reads or applies this setting.
Changing it has no effect on the panel. The monitoring features remain usable, but the declared
setting is inert.

3. non-blocking - systempulse/README.md:21

The Settings table documents the five widget settings but omits the declared
panel_background_opacity setting. This does not satisfy the README template requirement to
describe every declared setting and leaves users without documentation for the setting.