For instructions on migrating from Marlin to Smoothie.
Please fix any errors you find, this is a free-to-edit wiki
If somebody would like to write a similar guide for Repetier, Teacup or GRBL, that would be extremely welcome. It’s not that much work, it took me only two hours doing this one.
FYI, the mobile site is completely unusable (on Android under both chrome and Firefox). The black top menu thing is expanded to take up the entire visible screen with no scrolling possible. (If I request the desktop version it is OK)