2/ For those that wonder how this works, see https://ebpf.party/how-it-works/ To quote:
""As you write code, TCC (Tiny C Compiler) runs in your browser via WASM to provide instant typechecking without server roundtrips.
When you you click Run your code is saved in local storage and sent to the backend.
The backend will compile your code to a BPF object using clang and spin up a fresh VM to execute it. […]""