https://ukandeu.ac.uk/wp-content/uploads/2023/05/Divergence-Tracker-7-FINAL.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/397079/Scotland_EnduringSettlement_acc.pdf
https://blogs.lse.ac.uk/brexit/2019/10/09/northern-ireland-depends-on-the-eus-fluid-borders-for-survival/