403 forbidden for files in the public dir
```
Nim Compiler Version 0.19.4 [Linux: amd64]
Compiled at 2019-03-05
Copyright (c) 2006-2018 by Andreas Rumpf

active boot switches: -d:release
```
```
DEBUG GET /favicon.ico
DEBUG   403 Forbidden {"content-type": @["text/html;charset=utf-8"]}
```

public/ is owned by the user running nitter. I'm on commit 2c6cabb4abe79166ce9973d8652fb213c1b0c5a2.