Like Wine does for Windows, Winedroid lets APKs run as first-class desktop applications: no virtual machine, no container, no full Android OS.
Winedroid is an Android userspace compatibility layer for macOS and Linux. Instead of simulating Android hardware like a virtual machine or running a full Android system image, Winedroid translates Android framework calls into host-native equivalents on-the-fly, the same approach Wine takes with Windows API calls. An APK should run without knowing it is inside Winedroid, just as a Windows executable does not need to know it is running inside Wine.
OpenCalculator boots through the DEX interpreter, renders via Skia, and basic interactions are working.