This RFC describes small changes to Koha's opac to simplify maintaining css and template changes between different libraries in a single Koha installation, allowing css overrides per branch location depending on the URI used to access the PAC.
This feature is implemented via the web server's capacity to pass environment variables to CGI. Three environment variables are defined:
Atuh.pm will pass these vars from CGI to templates.
none; this feature is enabled by creating the env vars in web server configuration.
This feature potentially conflicts with the searchmylibraryfirst sytem preference. If the opac_search_limit is a branch limit, opac_limit_override should be set to true.