OpenDsc is a GitHub-hosted open-source initiative that delivers lean, cross-platform tooling for organizations practicing Desired State Configuration across Windows, Linux, and macOS estates. The project’s two tightly coupled components work together to provide continuous, policy-driven drift detection and remediation without the overhead of larger configuration frameworks. The Local Configuration Manager installs as a lightweight background service that polls declared baselines stored in local MOF files, compares current system settings against those baselines, and silently corrects deviations according to predefined frequency and reboot-safe logic. Complementing the engine, the OpenDsc Resources bundle supplies an extensive library of pre-authored DSC scripts covering registry keys, file permissions, installed features, certificates, scheduled tasks, user rights, firewall rules, and cross-platform items such as cron jobs or systemd units. Together they enable infrastructure teams to treat laptops, servers, and cloud VMs as cattle: version-controlled configuration documents are pushed through CI pipelines, automatically compiled into MOFs, and consumed by the LCM to guarantee that every endpoint converges to the desired state even when offline. Typical use cases include security-hardening golden images, enforcing CIS or STIG baselines, keeping developer workstations in sync, and providing idempotent post-deployment remediation for IaaS VMs. Both packages are available free of charge on get.nero.com, where downloads are served through trusted Windows package sources such as winget, always pull the latest upstream release, and can be installed individually or batched for rapid fleet rollout.