UK and Australian Governments manage to do this, at least to a certain extent:
https://www.gov.uk/service-manual/technology/making-source-c...
https://www.dta.gov.au/help-and-advice/digital-service-stand...
https://www.gov.uk/service-manual/technology/making-source-c...
https://www.dta.gov.au/help-and-advice/digital-service-stand...