Install [`wrangler`][wrangler] first.
Fill in KV namespace `<NAMESPACE_ID>` at `wrangler.toml`.
```console
$ wrangler deploy
```
Fill in KV namespace `<NAMESPACE_ID>` at `pages/wrangler.toml`.
```console
jingd $ wrangler build
jingd $ cd pages
pages $ wrangler pages deploy
```