File system limitations brought by the isolation of arc

[yaonyan]

Thank you for your hard work. Could you please help me take a look at these problems?

After using nix bundle to build a binary, I have encountered the following issues:

1. The binary is unable to read local files.
2. The binary cannot write files to the correct path.
3. The presence of /tmp/nix... makes it difficult for us to locate the appropriate path:

[__qci-pipeline-10908404-1: root]# ls /tmp/nix*
/tmp/nixnT3X1v:
dev etc home nix proc root run sys tmp usr var
/tmp/nixYQs8R2:
dev etc home nix proc root run sys tmp usr var