If you read the Linkding archiving page, you can see that it is possible to set up SingleFile extension to auto-snapshot the page when the page is added, from the browser you're using at that moment. The advantage is that loing is handled implicitly, but a disadvantage is that this only works in the browser, and not for example when you use the Android app. But for me that's fine,

Also, it is possible to configure SingleFile extension to automatically push a snapshot to a REST Form API. You can even make it do so when you bookmarks something in your browser, to achive a flow where bookmarking something in the browser saves the page via SingleFile extension and gives it to ArchiveFile.

https://docs.archivebox.io/dev/Contents.html#api-reference

Also, look in the SingleFile extension options, under Destination.