Desktop. I followed this tutorial.
https://youtu.be/4Pe71nsIBhk
Instead interval shooting as shown in the video, I used burst in our stock camera. The phone was mounted though. It's very intensive computation in the Photoshop. Took me 2 hours to get it done. I should have downscaled the images or shouldn't have selected all of the frames.
Yes in low light I'll say even go for couple of seconds for smoothness. I don't think any camera app can go below 100 iso on our phone. On iPhone some apps can go as low as iso 10.
Here's one of the original
frames for the reference.