Yes, the project explicitly provides source-build commands, requires only Xcode Command Line Tools, and licenses the source under GPL v3; however, a fork cannot directly reuse the official brand identity.

• “Build it yourself” says Xcode Command Line Tools are the only requirement, and the build script compiles, generates the icon, and assembles a signed bundle.
• The README provides the clone, directory-change, and ./build.sh/./build.sh --install workflow for local building or installation into Applications.
• Project data identifies Swift as the main language and GNU General Public License v3.0 as the license, matching the constraints of a Swift-native fork.
• The README separates GPL source licensing from the Vorssaint name, icon, and visual identity; a distributed fork needs its own identity.

Yes, because it combines window management and per-app audio routing in one native menu bar app without requiring an additional audio driver.

• The README’s “Sound” section lists per-app volume, volume above 100%, per-app output routing, and quick output switching; music and calls can be sent to different devices.
• The “Windows and the Dock” feature set includes snapping, half-screen, one-third, six-zone and corner layouts, multi-display switching, and restoring window history.
• The project requires Apple Silicon and macOS 14 Sonoma or newer, matching your environment.
• Per-app volume and output routing require System Audio Recording, while window controls generally require Accessibility; those features remain unavailable without authorization.

Yes, the README provides both settings export/import and a complete uninstall command, covering the two operational paths you specified.

• “Install only what you use” says settings can be exported to a file and imported on a new Mac; uninstalling a feature does not delete its settings, so reinstalling can restore them.
• “Uninstall” provides a Homebrew command to remove the application itself.
• For complete cleanup of settings and permissions, the README gives ./Tools/uninstall.sh; “When something misbehaves” further says it quits the app, removes the login item, resets privacy grants, and deletes every trace.
• Official builds are Apple Developer ID signed and notarized, and the README says permissions survive updates, which supports a cross-version maintenance workflow.

Yes, because Vorssaint’s feature-installation model lets you enable only the modules you need and removes unused features from the loading scope.

• “Install only what you use” offers Essentials, Windows, and Battery and quiet bundles, as well as a visual picker for individual features.
• Uninstalled features disappear from the entire app and stop loading; the README explicitly says they then spend no CPU, memory, or energy, while reinstalling restores previous settings.
• “Know what your Mac is doing” lists CPU, GPU, memory, swap, temperatures, battery health, remaining time, cycle count, power draw, fan speed, live network rates, and a speed test.
• Menu bar readouts can be limited to the metrics you care about and shown as values or compact usage bars.

It depends: the default privacy model fits your requirement, but audio and capture features require relatively powerful macOS permissions.

• “Private by default” explicitly says there is no account, analytics, or tracking, and that the app is local-first.
• Network access is limited to visible operations such as update checks, speed tests, Homebrew actions, temporary screenshot or recording links, and feedback you explicitly send; it is therefore not an absolute no-network application.
• System Audio Recording is used for per-app volume and output routing, while Screen Recording is used for window previews, screenshots, text copying, and recordings. Those features are unavailable without the permissions.
• Permissions are optional; the app explains their purposes, shows which features use them, and identifies permissions that are no longer needed for quick revocation.

It depends, because the README confirms the required control features but labels Fan Control as beta, so it cannot establish suitability for every production machine.

• “Know what your Mac is doing” lists optional Fan Control beta, continuous manual speeds, custom temperature curves, and live RPM, covering your requested controls.
• The system monitor also exposes temperature, power draw, and fan speed, allowing you to observe the control outcome.
• Project insights state that manual speeds and temperature curves may affect noise, power use, or thermal management; the README provides no hardware compatibility matrix.
• The latest project data marks the release as v3.3.3-beta.4, with 5 releases in total, so stability information remains limited.