Watch your power usage. With large windowed VSCode or Cursor, you will see far higher CPU and GPU usage by WindowServer and more system power consumption. It’s easier if you track it with stats.app.
I have a good chunk of the frontend up at https://github.com/STRML/Healthcare.gov-Marketplace. As for the APIs, we will never see that code - Healthcare.gov reuses a large number of critical government systems that will likely stay closed forever or are paid vendor systems, like Oracle Access Manager.