to-version-catalogs

build-after.gradle.kts

plugins {
  alias(libs.plugin.myPlugin)
}

dependencies {
  implementation(libs.myLibrary)
}

build-before.gradle.kts

plugins {
  id "my.plugin" version "0.1"
}

dependencies {
  implementation("com.example.library:library-name:1.2.3")
}

libs.versions.toml

[versions]
my-plugin = "0.1"
my-library = "1.2.3"
[libraries]
myLibrary = { module = "com.example.library:library-name", version.ref = "my-library" }
[plugins]
myPlugin = { id = "com.example.plugin:my-plugin", version.ref = "my-plugin"}

settings.gradle.kt

// add this
dependencyResolutionManagement {
    versionCatalogs { create("libs") { from(files("libs.versions.toml")) } }
}