@adfr @AwesomeAstronomy @Siril_Official best features are (a) works on a Mac (b) Free (c) Serious toolset (not a toy) (d) expanding all the time with new capabilities. The worst thing are limited support via YouTube tutorials (getting better) and support documentation (but again getting better). Also i would like a way to automate stacking when you have master fits (rather than all the subs). However i can’t believe what i do get based on people’s free time 👏 👏 👏 🙇♂️