User manual for the AO. The same text is intended to be displayed in both the command line (ao-cli) and the web browser (ao-svelte or ao-3).
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Snapshots for Faster Server Start

In its database, the AO uses a log of events from the beginning of time to reconstruct the current state of affairs every time it starts up. The AO can also make snapshots of the state of affairs at a particular point in time and load from one of these images when it starts up. Currently, the recommended normal operation of the AO is to set the AO to automatically make these snapshots once per day, and to always load from the most recent snapshot. When a snapshot is created, in theory, all of the events preceding that snapshot could be safely deleted, as the AO will always be able to load from the snapshot. However, this is not yet recommended, because the AO is not yet fully stable, and if you run into any issues with your snapshots, you can always just reconstruct from the beginning of time. Later, we may set it to automatically delete the old events, which will allow the AO to fully forget deleted cards and members. Currently, traces still remain in the database and are accessible to admins (or an attacker).