Support for string replacements

[taitps]

I'm not seeing anything in the documentation, and I'm wondering if there has been any consideration of support for string replacements per the SF cli / sfdx-project.json functionality?
https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_ws_string_replace.htm

It would be cool to have it tied to the environments defined in the Hardis config!