Retired Engineer, specialized in nonlinear FEA. Amateur photographer and astrophotographer. I use GIMP, Topaz AI products, Affinity Photo 2, GraXpert, Siril, and other software for astrophotography. All on an M1 MacBook Pro and iPad Pro. Had been doing mostly iPhone photos but recently got a Canon R6 Mark 2. Some of my beginner astro photos can be found here: https://www.flickr.com/photos/197526988@N08/