- Introduced a new NixOS module for the lidarr-mb-gap service, allowing users to configure and manage the report generation process through NixOS.
- Added a comprehensive deployment guide in `nixos/DEPLOYMENT.md`, detailing setup instructions, configuration options, and troubleshooting tips for deploying the service on NixOS and serving reports via Caddy.
- Updated `flake.nix` to export the new NixOS module.
- Enhanced the report generation scripts to support customizable output paths for generated reports.
- Updated `flake.nix` to define a new Python application `lidarr-mb-gap` for identifying missing albums on MusicBrainz.
- Improved development shell environment by including a Python environment with necessary packages.
- Added new source files: `__init__.py`, `html_report.py`, and `main.py` to implement core functionality and HTML report generation.
- Introduced `pyproject.toml` for better package management and project metadata.
- Enhanced user instructions in the shell hook for running the application.