SiriKali is a Qt/C++ desktop application that provides a unified graphical interface for creating, mounting, unmounting, and managing encrypted volumes backed by multiple FUSE-based encryption filesystems (CryFS, EncFS, Gocryptfs, Securefs, ecryptfs, fscrypt, sshfs, Cryptomator, Cppcryptfs, and custom backends). The application abstracts each backend through a polymorphic engine pattern, where each engine defines command templates, version detection, error mapping, and GUI option dialogs. It also integrates with several secure password storage backends (internal LXQt wallet, KWallet, libsecret, macOS Keychain, Windows DPAPI) and supports keyfiles, HMAC key derivation, YubiKey challenge-response, and external plugin executables. The architecture is a monolith with a main window, system tray, and numerous modal dialogs; it runs as a single-instance application and can operate headlessly via CLI flags for automation. External dependencies include the Qt framework (5 or 6), libgcrypt, libsecret, KDE Wallet, and the backend encryption executables themselves. The codebase is cross-platform (Linux, macOS, Windows, Flatpak) and includes a Polkit helper for privileged mount operations.