https://help.prusa3d.com/guide/how-to-import-profiles-to-cura-4-x-windows-macos_17848
https://forum.prusa3d.com/forum/user-mods-octoprint-enclosures-nozzles/cura-5-0-prusa-mini/
https://prusa3d.com/downloads/Cura_S3D/Cura_OriginalPrusa_Profiles.zip
C:\Program Files\Ultimaker Cura 5.1.0\share\cura\resources (system wide installed folder, requires admin to modify)
%appdata%\cura\5.1 (specific to your logged in user, doesn't need admin)
Extract the pieces into the appropriate folders
For example for Cura Mini or Cura Mini+, drill into the downloaded folder to:
Cura_OriginalPrusa_Profiles\Cura_OriginalPrusa_Profiles\Cura_OriginalPrusa_Profiles\Cura_4_0_0\MINI_cura_profiles
Then extract each of the folders to the right places in the Cura folder above:
%appdata%/cura/5.1/definitions
Copy in
01_Cura_printer_definitions/Original_prusa_MINI.def.json
%appdata%/cura/5.1/extruders
Copy in
02_Cura_printer_extruders/Original_Prusa_MINI_extruder_0.def.json
C:\Program Files\Ultimaker Cura 5.1.0\share\cura\resources\meshes # requires admin writes to add to here
Copy in
03_Cura_meshes/Original_Prusa_MINI_platform.stl
These don't get found automatically, they have to be imported thru the Preferences window:
Cura > Preferences > Profiles > Import
Navigate to and import
04_Cura_layerheight_profiles/*.curaprofile
These are technically stored here:
%APPDATA%\cura\5.1\quality_changes\*.inst.cfg and with a version for each extruder
These don't get found automatically, they have to imported thru the Preferences window:
Cura > Preferences > Materials > Import
Navigate to and import
04_Cura_layerheight_profiles/*.xml.fdm_material
These are stored here:
%APPDATA%\cura\5.1\materials\*.xml.fdm_material