Internship letters work when they connect one or two posting requirements to a project, course, or part-time role you can explain.
Name the internship and team. Point at a project or course that matches the stack or duty. Say what you did yourself.
Do not claim full-time ownership of class group work. Accuracy survives the interview; inflation does not.
Use projects, coursework, and relevant part-time work. A clear student letter beats a copied professional sample.
No. Select two proofs and explain why they match this posting.