Harihareswara occasionally provides advice to Tidelift on connecting with and serving open source software maintainers, especially Pythonists.

The Packaging Working Group of the Python Software Foundation engaged Changeset to coordinate and improve communication among and for the Python Packaging Authority, a group of maintainers of key Python packaging and distribution tools.

As Senior Technical Writer, Harihareswara wrote MediaWiki's performance and architecture guidelines, revamped and ran its Requests for Comment process, and mentored an Outreachy intern focusing on auditing and improving API client libraries.