`~/.atom/.apmrc`

```
strict-ssl = false
http-proxy = http://127.0.0.1:8090/proxy.pac
```

```
$ apm config list
...
http-proxy = "http://127.0.0.1:8090/proxy.pac"
...
```

[apm#behind-a-firewall](https://github.com/atom/apm#behind-a-firewall)