0_path.zsh reinserts .yadr paths twice in tmux

in terminal
```sh
sky@nimbus ~ $ echo $PATH 
/Users/sky/.rbenv/shims:/Users/sky/.rbenv/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin:/Users/sky/.yadr/bin:/Users/sky/.yadr/bin/yadr
```

in tmux

```sh
sky@nimbus ~ $ echo $PATH
/Users/sky/.rbenv/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin:/Users/sky/.rbenv/shims:/Users/sky/.yadr/bin:/Users/sky/.yadr/bin/yadr:/Users/sky/.yadr/bin:/Users/sky/.yadr/bin/yadr
```

zsh/0_path.zsh

@@ -1,2 +1,7 @@
 # path, the 0 in the filename causes this to load first
-export PATH=$PATH:$HOME/.yadr/bin:$HOME/.yadr/bin/yadr
+path=(
+  $path
+  $HOME/.yadr/bin
+  $HOME/.yadr/bin/yadr
+)
+