Setting a custom path for specific MDX pages

[hoffmanilya]

I'd like to set a custom path for specific pages instead of the using the default folder structure path. I have a a folder called pages/foo and the pages inside there should be accessed directly by their filename. The following snippet works but I'm curious if there's an easier way that I'm missing:

// If the newly created page's path contains /foo/
// delete that page and create a new page with
// an updated path.
//
// E.g. "/foo/123" becomes "/123"
//
exports.onCreatePage = async ({ page, actions }) => {
    const { createPage, deletePage } = actions
    const matches = page.path.match(/^\/foo\/(.+)/)

    if (matches) {   
        deletePage(page)

        createPage({
            ...page,
            path: `/${matches[1]}`
        })
    }
}