What has changed:
- It downloads Arduino IDE 1.8.5 just once. Good for future build enviroment versions
- Uses Prusa Arduino_Boards. At this moment it download my 3d-gussner fork/branch/release. Pull request is made to DRracers his fork ... and finally to Prusa repository
- Minimized PF-build-env to changed files only. At this moment it only \hardware\tools\avr\avr\lib\ldscripts\avr6.xn
Old but updated:
Arduino IDE is portable and this build environment can be used with GUI.
Important preferences are set during istallation.
One thing users need to do is to go to Boardsmanager and search for Prusa and use EINSy board.