How to Start a Service in a Specific Directory via Daemontools?

I am using [daemontools](https://cr.yp.to/daemontools.html) to start my application. In the run script, I have something like exec taskset -c 2 [absolute path to my application] But the problem is that one of the black box library my application expects it to run in a specific directory. Now my question is how I can run my application in a specific directory without creating a subshell. Thanks.