Enhancement: Improve NixOS Integration with Proper Service Module

[sacsbrainz]

Background

Currently, users installing MControlCenter on NixOS need to add D-Bus configuration to their system configuration manually:

services.dbus.packages = [ pkgs.mcontrolcenter ];

This creates friction for NixOS users, as most packages in the NixOS ecosystem "just work" without requiring additional manual configuration steps.

Problem

The current approach has several issues:

• Inconsistent with NixOS patterns: Most system/hardware tools provide proper service modules
• Documentation burden: Users need to discover and understand the D-Bus requirement separately
• Integration gaps: The package doesn't follow NixOS conventions for system services

Proposed Solution

Add a NixOS service module that handles D-Bus registration and system integration automatically. This would allow users to simply enable the service:

# configuration.nix
services.mcontrolcenter.enable = true;

Examples in NixOS Ecosystem

This pattern is used by many similar tools:

• services.tlp.enable = true; (power management)
• services.auto-cpufreq.enable = true; (CPU frequency scaling)
• services.thermald.enable = true; (thermal management)

Backward Compatibility

This change would be fully backward compatible - existing manual D-Bus configuration would continue to work, but new users could use the cleaner service approach.

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This enhancement would significantly improve the NixOS user experience and align MControlCenter with ecosystem best practices. Would you be open to this approach? I'd be happy to contribute a PR implementing this solution.