Just a question about the if order

Heyo, I have read through the source code today, and I was wondering why 	

```ts
if (process.platform === 'win32') { ... }
```

on line 112 is before the env variable ifs starting from line 142. I thought the env variables should have the highest priority and not which platform is used. Would be really nice, if you could enlighten me here.

Thanks for your time in previous. :)
Keep it up.