Error when using --exec or --exec-before-download

[lolocomotive]

When I try to use either of those options I'm getting

ERROR: [Errno 2] No such file or directory: '/data/data/com.termux/files/usr/bin/sh'

Is there a way to force it to use /usr/bin/sh instead of /data/data/com.termux/files/usr/bin/sh

The code

val request = YoutubeDLRequest(url)

/* Other options are added there */

request.addOption(
    "--exec-before-download",
    "" /* ffmpeg command to crop thumbnail to a square */
)
val response = YoutubeDL.getInstance().execute(request,  /* ... */})

[JunkFood02]

The path here is used for GNU/Linux, whose shell could be called from the Python code. But it seems that we can only achieve this in Java code in Android.