A good option is Hugin. Although it’s often used for panoramas, it can also align a stack of images to a reference frame.

Two approaches were suggested:

• Use Hugin’s align_image_stack tool/script to process the set automatically.
• For more control, open the images in Hugin and in the Photos tab set Feature matching to Align image stack.

Then:

1. Choose a base/reference photo.
2. Let Hugin create control points automatically.
3. Review and remove bad control points, especially ones placed on moving objects like people, vehicles, birds, leaves, or anything that changes between weeks.
4. Add manual control points on stable features if needed.
5. Export the aligned images and crop them all to the same frame size.

The key is to use only fixed, repeatable landmarks as control points so the sequence stays stable when toggled or turned into a time-lapse.