return Inertia::render('Billing', [
    'plans' => Inertia::once(fn () => Plan::all()),
]);

Inertia::share('countries', Inertia::once(fn () => Country::all()));

Inertia::shareOnce('countries', fn () => Country::all());

public function shareOnce(Request $request): array
{
    return [
        'countries' => fn () => Country::all(),
    ];
}

return Inertia::render('Dashboard', [
    'permissions' => Inertia::defer(fn () => Permission::all())->once(),
    'activity' => Inertia::merge(fn () => $user->recentActivity())->once(),
    'categories' => Inertia::optional(fn () => Category::all())->once(),
]);

return Inertia::render('Billing', [
    'plans' => Inertia::once(fn () => Plan::all())->fresh(),
]);

return Inertia::render('Dashboard', [
    'rates' => Inertia::once(fn () => ExchangeRate::all())->until(now()->addDay()),
]);

// Team member list...
return Inertia::render('Team/Index', [
    'memberRoles' => Inertia::once(fn () => Role::all())->as('roles'),
]);

// Invite form...
return Inertia::render('Team/Invite', [
    'availableRoles' => Inertia::once(fn () => Role::all())->as('roles'),
]);