To use a specific version of Zola, set [`ZOLA_VERSION`](https://vercel.com/docs/deployments/environments#specifying-framework-versions) environment variable in project settings to a valid
release tag, for example `0.17.2`.
## Troubleshooting
### `GLIBC_X.XX` not found
This is because Vercel's build images comes with an older glibc version whereas Zola
depends on a newer glibc. However, Vercel provides a newer build image which can be used in
deployments by setting Node.js version to "20.x", allowing Zola to work properly.
## Additional options
### Enable trailing slashes
Visiting a page without trailing slash may break relative paths, so you might want to configure
Vercel to always redirect paths with a trailing slash. By default, redirecting to a trailing
slash is not enabled on Vercel.
For example if you have an `about.md` file, and when visiting the path without a trailing
slash, like `/about`, Vercel will redirect with trailing slash, resulting in `/about/`.
Paths with a file extension will not redirect to a trailing slash, for example if you
have a static file named `favicon.ico`, it will stay as-is.
To enable that, create a file in the root of your git repository named `vercel.json`
(if it doesn't exists already), and set this option:
```json
{
"trailingSlash": true
}
```
### Prefer clean URLs
When enabled, all HTML files will be served without their file extension. For example
if you have an `about.md` file, Zola will generate a `about/index.html` file, but Vercel
will serve the file as `/about`, without its `index.html` suffix.
To enable that, create a file in the root of your git repository named `vercel.json`
(if it doesn't exists already), and set this option:
```json
{
"cleanUrls": true
}
```
### Using a custom Zola binary
If you want to use your own Zola binary that published on GitHub, or if you want to
always use the latest version of Zola, you can run a shell command to grab the
latest release from GitHub.
To do that, set "Framework Preset" to "Other", and override "Install Command" to:
