mO2FLATTENER

mO2FLATTENER takes a Mod Organizer 2 instance and writes out a real Skyrim folder you can launch with CrossOver. The virtual file system MO2 uses on Windows does not work on a Mac, so the app does the merge on disk instead.

You point it at the instance and a profile. It reads modlist.txt, resolves conflicts in priority order with the bottom mod winning, as MO2 does, and copies the winning files with several threads at once. Root mods and Stock Game files go to the game root, the rest to Data.

Options:

• hard links instead of copies to save disk space;
• deployment of plugins.txt and the game INI files;
• exclusion of .pdb, .mohidden and other files the game never reads;
• a stop button and a stop-on-error setting.

A Mac adaptation step at the end can add DXMT, ENB or DLSS fixes for a CrossOver bottle, or leave a stock folder untouched. Each fix is announced first, listed in a report afterwards and can be undone one by one. Bottled Shaders is never downloaded or bundled.

The app pairs with fCLEANER, which removes the leftovers a flattened setup keeps. Releases are arm64 builds for macOS 15 or later, notarized, in four languages.