These are both very nice projects! Ive unfortunately learned too late with hister that the browser bookmark ingestion expects the binary to be local, instead of on a server/vm. But other than that i'm glad these two projects seem like they complement each other.
You can configure the server URL for the extension by clicking on the cogwheel icon on the extension popup or by visiting the extension's settings page. Servers/VMs are fully supported even with user handling.