I’ve been working on a small project recently — a tool to create passport photos from home.
While building it, I realized how many applications get delayed because of small mistakes like incorrect size or background.
I put together a simple guide covering the requirements and common issues people face:
https://foxlypassportphoto.co.uk/us-passport-photo-requirements-2026-guide/
Would be great to hear if anyone has faced similar issues or has feedback.