Nexis

Features

Monitor

• Dashboard -- Real-time CPU, memory, disk, GPU, and network monitoring with customizable tile layouts, a system health score, and a one-click maintenance wizard
• Hardware Info -- Detailed system, processor, graphics, memory, battery, and disk information at a glance
• Resource Monitor -- Historical charts for CPU, memory, GPU, network, and disk I/O
• Kiosk Mode -- F11 fullscreen dashboard-only mode for dedicated monitoring displays
• GPU Monitoring -- GPU utilization tracking for NVIDIA, AMD, and Intel (Linux); Apple Silicon (macOS)
• Battery & Disk Health -- Battery cycle count and capacity degradation, SMART disk health (NVMe + SATA)

Manage

• System Cleaner -- Remove package caches, crash reports, application logs, app caches, and unused Flatpak runtimes
• Scheduled Cleaning -- Automated background cleaning via systemd, launchd, or cron with exclusion rules
• Disk Tools -- Find large/old files and scan for duplicates across directories
• File Search -- Search files by name, extension, size, and date with advanced filters
• Process Manager -- View, sort, filter, and manage running processes
• Service Manager -- Start, stop, and toggle system services (systemd / launchd)
• Startup Apps -- Manage auto-start applications with configurable delay
• Package Uninstaller -- Uninstall packages via APT, DNF, Pacman, Snap (Linux) or Homebrew (macOS)

System

• Docker Management -- GUI for managing Docker images, containers, and volumes
• System Logs -- View, filter, and search journald/syslog entries by severity
• Hosts File Editor -- Manage /etc/hosts entries with DNS cache flushing
• Network Diagnostics -- Ping, traceroute, DNS lookup, open ports viewer, and firewall management
• Power Profiles -- Switch between power-saver, balanced, and performance modes (Linux); Spotlight rebuild, disk verify, and LaunchServices rebuild (macOS)
• APT Repository Manager / Homebrew Taps -- Manage package repositories with health checks, diagnostics, and one-click repair
• Desktop Settings -- Adjust GNOME (Linux) or macOS desktop preferences
• Command Palette -- Ctrl+K quick-navigation to any page or action
• Theme Support -- Dark, light, and system-auto color schemes
• Internationalization -- 34 languages supported

How Nexis Compares

	Nexis	Stacer (fork)¹	Mission Center	BleachBit	OnyX	CleanMyMac
Linux support	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:x:	:x:
macOS support	:white_check_mark:	:x:	:x:	Experimental	:white_check_mark:	:white_check_mark:
Real-time monitoring	:white_check_mark:	:white_check_mark:	:white_check_mark:	:x:	:x:	Partial
GPU monitoring	:white_check_mark:	:x:	:white_check_mark:	:x:	:x:	:x:
Hardware info panel	:white_check_mark:	:x:	Partial	:x:	:x:	:x:
Battery & disk health	:white_check_mark:	:x:	:x:	:x:	:x:	:x:
System cleaning	:white_check_mark:	:white_check_mark:	:x:	:white_check_mark:	:white_check_mark:	:white_check_mark:
Scheduled cleaning	:white_check_mark:	:x:

¹ Upstream Stacer was officially abandoned (last release 2019); the actively maintained community fork (QuentiumYT/Stacer, now the Debian upstream) is compared here. ² Subscription (1 Mac); a one-time license is also available, now $89.95. ³ As of September 2026; Nexis's own cell reflects its actual last release rather than that check date. ⁴ macOS only: Homebrew cask update checks plus a verified download/install path for non-Homebrew apps that publish a Sparkle feed.

Based on each project's documented features and release data, verified September 2026. Spotted an error? Corrections welcome via issue.

Background

Nexis began as a fork of Stacer, a popular Linux system optimizer created by oguzhaninan. After the original project went inactive (last release 2019, officially declared abandoned), development continued here -- porting to Qt 6 and C++17, adding native macOS support, GPU monitoring, a hardware info panel, kiosk mode, and fixing hundreds of bugs and regressions inherited from the upstream codebase. As the feature-set diverged, the project was rebranded as Nexis to reflect that it had become something new. Stacer's lineage lives on in two places today: the QuentiumYT fork, which carries Stacer forward on Linux, and Nexis, which grew into a cross-platform rebuild. Stacer laid the foundation; Nexis is where it goes from here.

Downloads

Install via PPA, COPR, AUR, or Homebrew for automatic updates, or download pre-built binaries from the Releases page:

• Linux x86_64: .deb package, .AppImage portable, standalone binary
• Linux ARM64 (aarch64): .deb package, .AppImage portable, standalone binary
• macOS Apple Silicon: .dmg disk image

Install via PPA (Ubuntu)

sudo add-apt-repository ppa:s4solutionsllc/nexis
sudo apt update
sudo apt install nexis

Supports Ubuntu 26.04 (Resolute) on both x86_64 and ARM64. Updates are delivered automatically via apt upgrade. (Ubuntu 25.04 Plucky and 25.10 Questing both reached end-of-life and are no longer PPA series.)

Ubuntu 22.04 / 24.04 (and Linux Mint Zena): Nexis 2.6+ requires Qt 6.8 LTS, which is not available in those repositories. Install via AppImage or upgrade to Ubuntu 26.04+.

Ubuntu 26.04 with the amd64v3 architecture variant enabled: if you opted into the amd64v3 microarchitecture repos, apt may fail to resolve the Nexis PPA because it only publishes plain amd64 packages. Edit the PPA's deb822 .sources file under /etc/apt/sources.list.d/ and add an explicit Architectures: amd64 field:

Types: deb
URIs: https://ppa.launchpadcontent.net/s4solutionsllc/nexis/ubuntu/
Suites: resolute
Components: main
Architectures: amd64
Signed-By: /usr/share/keyrings/s4solutionsllc-ubuntu-nexis.gpg

Then run sudo apt update again.

Install via COPR (Fedora)

sudo dnf copr enable luke-s4solutions/nexis
sudo dnf install nexis

Supports Fedora 43, Fedora 44, and Rawhide on x86_64. Updates are delivered automatically via dnf upgrade. Packages are built and signed by COPR; dnf copr enable imports the repository's GPG key on first use.

COPR is not an official Fedora repository. It is Fedora's community build service — packages there are not reviewed by Fedora QA. dnf copr enable will ask you to confirm this before adding the repo.

Install via AUR (Arch Linux)

yay -S nexis

Also works with paru or any other AUR helper. Builds from source — requires Qt6 development packages which are pulled in automatically. Updates are delivered via yay -Syu.

Install via Homebrew (macOS)

brew tap s4solutionsllc/nexis
brew trust s4solutionsllc/nexis        # required on Homebrew 6.0+ (third-party tap)
brew install --cask nexis

Requires macOS 14+ (Sonoma) on Apple Silicon. Updates are delivered via brew upgrade --cask nexis.

Homebrew 6.0+ requires third-party taps to be trusted before their casks will load. Without brew trust, brew install/upgrade/outdated refuse the cask with Refusing to load cask … from untrusted tap, so new releases never appear. Trusting the tap once is sufficient; future upgrades work normally.

Screenshots

Page	Screenshot
Hardware Info
Startup Apps
Search
Services
Processes
Uninstaller
System Logs
Resources
Helpers
APT Repository Manager
GNOME Settings
GNOME Settings (Window Manager)
GNOME Settings (Mouse/Touchpad)
Settings
Feedback

Building from Source

Prerequisites

Linux

Install Qt 6 development libraries:

Ubuntu / Debian:

sudo apt install cmake g++ qt6-base-dev qt6-charts-dev qt6-svg-dev \
  qt6-tools-dev-tools qt6-l10n-tools

Fedora / RHEL:

sudo dnf install cmake gcc-c++ qt6-qtbase-devel qt6-qtcharts-devel \
  qt6-qtsvg-devel qt6-qttools-devel qt6-linguist

Arch Linux:

sudo pacman -S cmake qt6-base qt6-charts qt6-svg qt6-tools

Note: On minimal or headless environments you may also need libgl1-mesa-dev (Debian/Ubuntu) or equivalent OpenGL headers.

macOS

brew install qt@6 cmake adwaita-icon-theme

After installing, ensure Qt is in your path:

export PATH="$(brew --prefix qt@6)/bin:$PATH"

Build

mkdir -p build && cd build
cmake .. -DCMAKE_PREFIX_PATH=$(brew --prefix qt@6)
make -j$(sysctl -n hw.ncpu)

Development

Nexis is co-authored by Claude Code, Anthropic's AI coding agent. Claude Code contributes to architecture decisions, feature implementation, bug fixes, CI/CD pipelines, and release engineering -- working alongside the human maintainer as a pair-programming partner.

Translations

Nexis supports 34 languages. Translations are managed via Crowdin -- no coding required to contribute. Sign up, pick a language, and start translating in your browser.

New translations are automatically synced back to this repository via pull request.

Maintainer Setup

To enable the Crowdin sync pipeline for a new fork:

1. Create a project at crowdin.com (free for open source).
2. Add two repository secrets in GitHub Settings > Secrets:
   • CROWDIN_PROJECT_ID -- numeric project ID from the Crowdin dashboard.
   • CROWDIN_PERSONAL_TOKEN -- personal access token from Crowdin account settings.
3. Seed the project with existing translations (one-time):

   brew install crowdin                # macOS
   export CROWDIN_PROJECT_ID=<id>
   export CROWDIN_PERSONAL_TOKEN=<token>
   crowdin upload sources --config crowdin.yml
   crowdin upload translations --config crowdin.yml --auto-approve-imported
   

4. The crowdin-sync.yml GitHub Action handles ongoing sync automatically.

Contributing

Bug reports and feature requests are welcome! Please open an issue or submit a pull request. See CHANGELOG.md for release history.

Maintenance & Releases

Nexis is a free, GPL-3.0 reference product with a single named full-time maintainer (no capacity time-box). If you are a future maintainer (human or agent) inheriting the project, read these in order:

• docs/MAINTAINER_SOP.md — ownership, time-box, on-call cadence, decision rights.
• RELEASE.md — end-to-end release runbook (tag, build matrix, code signing, Homebrew/AUR/PPA bumps, CVE expedited path, post-release verification, dry-run procedure).