Sora Sagano's excellent Nacelle.
<link rel="stylesheet" href="nacelle.css" type="text/css" charset="utf-8" integrity="sha384-6yK29EJyAhGXCLAXNG26WGjvPlnorYepCLOp03oQD6GiSmi+CZhwXnG13bJpctAm" crossorigin="anonymous" />
<style>
body {
font-family: "Nacelle";
font-weight: 400;
}
</style>
Note: if you modify the css file, use the following to re-compute the css resource integrity hash
$ cat nacelle.css | openssl dgst -sha384 -binary | openssl base64 -A
6yK29EJyAhGXCLAXNG26WGjvPlnorYepCLOp03oQD6GiSmi+CZhwXnG13bJpctAm