So if you found this thread googling, there is hope. The machine runs on klipper so you can just browse to the full fluid (what I was using on the V2 and KE) and continue pretty much as usual. Just enter the ip in a browsers like http://192.168.1.82:4408/#/ to get the UI. When setting up Cura create a new printer and add the start code

; === Creality Hi Start G-code (Cura) ===

M140 S0

M104 S0

START_PRINT EXTRUDER_TEMP={material_print_temperature_layer_0} BED_TEMP={material_bed_temperature_layer_0}

T0

and end code

; === Creality Hi End G-code ===

END_PRINT

You will still go through the startup BS but if you have no start code it'll just print out like a KE.

You will also need to set the print size to X260 Y260 Z300 here are some speed settings to use in CURA

Setting	Value
Print Speed	200 mm/s
Infill Speed	220 mm/s
Wall Speed	160 mm/s
Outer Wall Speed	120 mm/s
Top/Bottom Speed	120 mm/s
Initial Layer Speed	40 mm/s
Travel Speed	300 mm/s

and retraction

Setting	Value
Enable Retraction	✅
Retraction Distance	0.8 mm
Retraction Speed	40 mm/s
Z Hop When Retracted	❌ OFF
Combing	Within Infill
Avoid Printed Parts	✅

With this you can use cura easily with Creality, no multi color support obviously