I have captured some M31 data, but it seems that when i try to calibrate a light frame with a flat frame, it overcorrects significantly. If anyone can make just a semi-decent correction with the linked data and tell me how to do it myself, i will be forever grateful :)
Data: https://drive.google.com/drive/folders/1A61XqDKZH-gj-5kmih3LysDIDfxVDoBK?usp=drive_link
For reference, this is my (bad) attempt: