gooey-suncat/game/src/game.cxx

// Global module fragment, where #includes can happen
module;

import std;

export module game;

export class lib
{
public:
    lib();
    ~lib();
    void helloworld();
};

lib::lib() = default;
lib::~lib() = default;

void lib::helloworld()
{
    std::print("Hello world!\n");
}