1. Download Android Studio from [the official site](https://developer.android.com/studio/archive) (it is mandatory to use the version, written [here](https://github.com/JetBrains/androidx/blob/jb-main/gradle/libs.versions.toml#L11)). As an alternative you can use IDEA, which is compatible with [this AGP version](https://github.com/JetBrains/androidx/blob/jb-main/gradle/libs.versions.toml#L5), or you can disable Android plugin in IDEA plugins, to develop non-Android targets.
2. [macOs/Linux] Download Android SDK via `./compose/frameworks/support/jbdeps/android-sdk/downloadAndroidSdk`
2. [Windows] Download Android SDK via [Android Studio](https://developer.android.com/studio/intro/update#sdk-manager) and specify it in ANDROID_SDK_ROOT environment variable. Components, their versions and folder structure should be the same as in downloaded via script `./compose/frameworks/support/jbdeps/android-sdk/downloadAndroidSdk` SDK for other platforms.
(on Windows it doesn't build at the moment, the issue is in the line `packageInspector(project, project(":compose:ui:ui-inspection")` in `compose/frameworks/support/compose/ui/ui/build.gradle`)