David W. Plummer, the creator of the original Windows Task Manager, is developing a new tool called Task Manager OG (TMOG) for macOS, aimed at providing a comprehensive system console for users of graphical user interface-based operating systems. TMOG will feature detailed insights into processor frequency, thermal values, resource allocation metrics, in-depth analysis of CPU core activity, and process branching visualization. The macOS version is being developed using Swift and AppKit, while the Windows version will be a pure Win32 application optimized for x86-64 architecture. A beta version for macOS is currently available, with a Windows beta expected soon. TMOG will be free, with a potential "Pro" version planned for additional features. Plummer's previous company, SoftwareOnline, faced legal issues after he left Microsoft, resulting in a settlement that included 0,000 in civil penalties and ,000 in legal fees.