`@electron/windows-sign` is a tool for code signing Windows applications, primarily designed for Electron apps but compatible with any folder containing binary files. It scans for signable files (e.g., executables, DLLs, installers) and applies both SHA-1 and SHA-256 signatures using `signtool.exe`, with support for custom certificates, HSM providers, and flexible configuration options. It's ideal for developers needing to sign Windows binaries, especially those using EV certificates or cloud-based HSM solutions like DigiCert KeyLocker or AWS CloudHSM.