Gradle
In plain terms
A flexible build automation tool for the JVM and beyond.
Going deeper
Gradle builds projects using concise Groovy or Kotlin scripts, with incremental builds and strong performance. It's faster and more flexible than Maven.
Under the hood
Build caching and incremental compilation speed large builds; the default for Android.
Examples
Android builds, Java/Kotlin, build.gradle, incremental builds, multi-project.
Think of it like...
Like a programmable assembly line you script to build exactly how you want, fast.