Use this tag for questions about a specific custom firmware for the low-cost series of Anet printers to support the special displays they use.
Skynet3D is an obsolete fork of Marlin Firmware that was created because the displays of the Anet printers have a different layout in terms of pin assignment (also uses analog buttons). When the code stabilized, the fork of Marlin merged into the main code base. Configuration files for the Anet A8 and A6 have been added, see here.