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+* Dependency injection
+  * Services registered with LifecycleManager
+  * Hooks for adding/removing contacts registered with ContactManager
+  * Hooks for adding/removing identities registered with IdentityManager
+* Sign in
+  * User enters password
+  * Password used to decrypt database key
+* Database opened
+* Services started
+  * PluginManager creates and starts plugins
+* Main user interface shown
+* Sign out
+* Services stopped
+* Executors shut down
+* Database closed
+* Shutdown hooks run (not guaranteed)