Analogue 3D's latest update lets you save whenever you want - Engadget
Analogue 3D v1.3.0 adds Memories quicksave hotkeys, enabling save-state capture anytime, up to 20 files, with automatic deletion and pinning for preservation.
Analogue 3D firmware 1.3.0 adds Memories save states, enabling instant saves and resumes to reduce Virtual Controller Pak saving issues with original or wired N64 controllers.