Currently to support path_regexes that should work on windows and other systems you need to manually handle the different separators with (/|\\) like this.

- path_regex: staging(/|\\).*\.secret\.(yaml|json)$
  gcp_kms: projects/.../sops-key-staging

This is a bit cumbersome and a bit error prone to use and would be nicer if we could just use slashes like this:

- path_regex: staging/.*\.secret\.(yaml|json)$
  gcp_kms: projects/.../sops-key-staging