I'm currently working on my own Zig project (an interpreter) and right now I'm working on designing a C interface for it. Seeing things mentioned like having objects as opaque handles, or enum-keyed getters and setters, made me think about how clunky my current API is, since I leak too many details to callers.

What really caught my attention was this: "So from the start, I took inspiration from C libraries I enjoyed working with and designed the API to have a strong, stable ABI that allows for future additions." What are good examples of this? I feel like I just don't have enough experience with well-designed C libraries to know what to look for.