Canvas mobile app on self hosted instance

[turphin]

The Canvas iOS app's readme has a section about connecting to Canvas servers (https://github.com/instructure/canvas-ios?tab=readme-ov-file#using-the-canvas-apps). The link for connecting to local or 'portal' instances seems to be an internal employee-only Confluence page and the text about a VPN also seems employee-directed, is it possible to use the Canvas apps to connect to a self-hosted instance?