Init simple C project with GitHub Actions CI

[Copilot]

Bootstraps a minimal C project with a library and a GitHub Actions workflow.

Structure

• src/main.c – trivial entry point calling greet("World")
• src/mylib.h / src/mylib.c – greet() library; uses snprintf into a _Thread_local buffer (bounds-safe, thread-safe)
• Makefile – builds hello target with -Wall -Wextra
• .github/workflows/ci.yml – builds and runs the binary on every push/PR, with contents: read least-privilege token permissions

Example output

$ make && ./hello
Hello, World!

Original prompt

I want a simple C project with trivial main function, one h library file and the corresponding c library file. Initialize a .github folder with a workflow subfolder.

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.