Open-source code to force links to open outside in-app browser (Threads/Instagram)

I need a freelancer to provide me with open-source, reusable code that ensures my links do not open inside the in-app browser of Threads/Instagram, but instead open directly in Safari (iOS) or Chrome (Android).

The solution should be simple, well-documented, and easy to apply to my own domains so I can redirect users to any destination I choose.