#include <cassert>

#include <cstring>

#include <dirent.h>

#include <functional>

#include <iostream>

#include <libgen.h>

#include <optional>

#include <string>

#include <unistd.h>

#include <vector>

#include <args.hxx>

bool isFile(const std::string& path) {

return access(path.c_str(), F_OK) == 0;

}

std::string findAppimagetool() {

}

std::optional<std::string> getEnvVar(std::initializer_list<std::string> names) {

}

void doSomethingWithEnvVar(std::initializer_list<std::string> names, const std::function<void(const std::string&)>& todo) {

}

int main(const int argc, const char* const* const argv) {

}