Resolvi dessa forma, colocando o fallback do getStaticPaths como "blocking"

export async function getStaticPaths() {
  const requestProjects = await axios.get(
    "https://api.fernandorangel.com.br/show-projects"
  );

  const paths = requestProjects.data.map((project: ProjectObject) => ({
    params: { id: project.id.toString() },
  }));

  return {
    paths,
    fallback: "blocking",
  };
}