const [comment, ...unsentMessages] = await prisma.$transaction([
  prisma.comment.create({
    data: {},
  }),
  ...alerts.map((alert) =>
    prisma.unsentMessage.create({
      data: {
        content: alert.content,
      },
    })
  ),
]);

await Promise.all(
  unsentMessages.map(async (unsentMessage) => {
    await sendMessage(unsentMessage);
    await prisma.unsentMessage.delete({
      where: { id: unsentMessage.id },
    });
  })
);