Current/working directory issue from wrapper

A common packaging issue I encounter is when a tool is looking for relative resources in its root directory (install directory). Eg. pkg-name (/usr/share/pkg-name/pkg-name) is looking for resourceA (/usr/share/pkg-name/resourceA) so you can't call /usr/share/pkg-name/pkg-name directly unless your $PWD = /usr/share/pkg-name/, because if you're elsewhere (eg. /home/user) that tool will look for /home/user/resourceA and raise an error. So your are forced to create a wrapper like the following one: /usr/bin/pkg-wrapper

#!/bin/sh
cd /usr/share/pkg-name
exec pkg-name "\$@"

Now you can call /usr/bin/pkg-wrapper from whatever you want but a new issue is facing you! By adding cd /usr/share/pkg-name in your wrapper, $PWD = /usr/share/pkg-name in the context of the script. So imagine that pkg-wrapper -o file can write a file, now pkg-wrapper -o file will try to save the file file at /usr/share/pkg-name/file (current/working directory in the script context) and not at /home/user/file (current/working directory from where you are calling the wrapper). So files are now saved not in the folder you would like and if /usr/share/pkg-name/ is write protected you will get a permission error anyway. So you can't use relative file path anymore and are forced to either specify absolute path eg. pkg-wrapper -o /home/user/file or a little trick like pkg-wrapper -o "$(pwd)/file" or pkg-wrapper -o "$PWD/file". Is there an agnostic way to solve this common issue? If not a way to patch ruby & python to use the "user current directory" rather than the script/process current directory? I already looked bash set options, bundle exec options. For example a wrapper for a ruby script could be like the following if the --magicoption option existed to specify the the root directory where to look Gemfile, vendor/ and .bundle/ from.

#!/bin/sh
exec bundle exec /usr/share/pkg-name/pkg-name.rb --magicoption /usr/share/pkg-name/ "\$@"

This is just an example for a ruby package but it's the same issue for any script / binary from any language.