Same here though my preferred tool is OmniOutliner or any similar tool with hierarchical branching. There are other tools like Roam/Obsidian but Omni has proved

Same here though my preferred tool is OmniOutliner or any similar tool with hierarchical branching. There are other tools like Roam/Obsidian but Omni has proved to the fastest offline local macOS app with the most rich feature set.