一度は見たことがあるでしょう「Jetpack Compose Samples」。
👉 android/compose-samples: Official Jetpack Compose samples. 
こんな記述があります。
👉 Jetchat/build.gradle.kts#L39-L42 
何でしょうか、調べてみましょう。
■ Version catalog update plugin
このプラグインは、libs.versions.toml の作成や更新をしてくれるようです。
👉 littlerobots/version-catalog-update-plugin: Gradle plugin for updating a project version catalog 
一度、書き出して、どのようになるか確かめてみます。
■ 作成
./gradlew versionCatalogUpdate --create
作成されました。
[versions]
androidx-appcompat = "1.5.1"
androidx-arch-core = "2.1.0"
androidx-core = "1.8.0"
androidx-emoji2 = "1.2.0"
androidx-vectordrawable = "1.1.0"
org-jetbrains-kotlin = "1.7.20"
org-jetbrains-kotlinx = "1.6.1"
[libraries]
androidx-activity = "androidx.activity:activity:1.5.1"
androidx-annotation = "androidx.annotation:annotation:1.3.0"
androidx-annotation-annotation-experimental = "androidx.annotation:annotation-experimental:1.1.0"
androidx-appcompat = { module = "androidx.appcompat:appcompat", version.ref = "androidx-appcompat" }
androidx-appcompat-appcompat-resources = { module = "androidx.appcompat:appcompat-resources", version.ref = "androidx-appcompat" }
androidx-arch-core-core-common = { module = "androidx.arch.core:core-common", version.ref = "androidx-arch-core" }
androidx-arch-core-core-runtime = { module = "androidx.arch.core:core-runtime", version.ref = "androidx-arch-core" }
androidx-cardview = "androidx.cardview:cardview:1.0.0"
androidx-collection = "androidx.collection:collection:1.1.0"
androidx-concurrent-concurrent-futures = "androidx.concurrent:concurrent-futures:1.0.0"
androidx-constraintlayout = "androidx.constraintlayout:constraintlayout:2.1.4"
androidx-constraintlayout-constraintlayout-core = "androidx.constraintlayout:constraintlayout-core:1.0.4"
androidx-constraintlayout-constraintlayout-solver = "androidx.constraintlayout:constraintlayout-solver:2.0.1"
androidx-coordinatorlayout = "androidx.coordinatorlayout:coordinatorlayout:1.1.0"
androidx-core = { module = "androidx.core:core", version.ref = "androidx-core" }
androidx-core-core-ktx = { module = "androidx.core:core-ktx", version.ref = "androidx-core" }
androidx-cursoradapter = "androidx.cursoradapter:cursoradapter:1.0.0"
androidx-customview = "androidx.customview:customview:1.1.0"
androidx-documentfile = "androidx.documentfile:documentfile:1.0.0"
androidx-drawerlayout = "androidx.drawerlayout:drawerlayout:1.1.1"
androidx-dynamicanimation = "androidx.dynamicanimation:dynamicanimation:1.0.0"
androidx-emoji2 = { module = "androidx.emoji2:emoji2", version.ref = "androidx-emoji2" }
androidx-emoji2-emoji2-views-helper = { module = "androidx.emoji2:emoji2-views-helper", version.ref = "androidx-emoji2" }
androidx-fragment = "androidx.fragment:fragment:1.3.6"
androidx-interpolator = "androidx.interpolator:interpolator:1.0.0"
androidx-legacy-legacy-support-core-utils = "androidx.legacy:legacy-support-core-utils:1.0.0"
androidx-lifecycle-lifecycle-common = "androidx.lifecycle:lifecycle-common:2.5.1"
androidx-lifecycle-lifecycle-livedata = "androidx.lifecycle:lifecycle-livedata:2.0.0"
androidx-lifecycle-lifecycle-livedata-core = "androidx.lifecycle:lifecycle-livedata-core:2.5.1"
androidx-lifecycle-lifecycle-process = "androidx.lifecycle:lifecycle-process:2.4.1"
androidx-lifecycle-lifecycle-runtime = "androidx.lifecycle:lifecycle-runtime:2.5.1"
androidx-lifecycle-lifecycle-viewmodel = "androidx.lifecycle:lifecycle-viewmodel:2.5.1"
androidx-lifecycle-lifecycle-viewmodel-savedstate = "androidx.lifecycle:lifecycle-viewmodel-savedstate:2.5.1"
androidx-loader = "androidx.loader:loader:1.0.0"
androidx-localbroadcastmanager = "androidx.localbroadcastmanager:localbroadcastmanager:1.0.0"
androidx-print = "androidx.print:print:1.0.0"
androidx-recyclerview = "androidx.recyclerview:recyclerview:1.1.0"
androidx-resourceinspection-resourceinspection-annotation = "androidx.resourceinspection:resourceinspection-annotation:1.0.1"
androidx-savedstate = "androidx.savedstate:savedstate:1.2.0"
androidx-startup-startup-runtime = "androidx.startup:startup-runtime:1.1.1"
androidx-test-espresso-espresso-core = "androidx.test.espresso:espresso-core:3.4.0"
androidx-test-ext-junit = "androidx.test.ext:junit:1.1.3"
androidx-tracing = "androidx.tracing:tracing:1.0.0"
androidx-transition = "androidx.transition:transition:1.2.0"
androidx-vectordrawable = { module = "androidx.vectordrawable:vectordrawable", version.ref = "androidx-vectordrawable" }
androidx-vectordrawable-vectordrawable-animated = { module = "androidx.vectordrawable:vectordrawable-animated", version.ref = "androidx-vectordrawable" }
androidx-versionedparcelable = "androidx.versionedparcelable:versionedparcelable:1.1.1"
androidx-viewpager = "androidx.viewpager:viewpager:1.0.0"
androidx-viewpager2 = "androidx.viewpager2:viewpager2:1.0.0"
com-google-android-material = "com.google.android.material:material:1.7.0"
junit = "junit:junit:4.13.2"
org-apache-logging-log4j-log4j-core = "org.apache.logging.log4j:log4j-core:2.17.1"
org-jacoco-org-jacoco-ant = "org.jacoco:org.jacoco.ant:0.8.7"
org-jetbrains-annotations = "org.jetbrains:annotations:13.0"
org-jetbrains-kotlin-kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "org-jetbrains-kotlin" }
org-jetbrains-kotlin-kotlin-stdlib-common = { module = "org.jetbrains.kotlin:kotlin-stdlib-common", version.ref = "org-jetbrains-kotlin" }
org-jetbrains-kotlin-kotlin-stdlib-jdk7 = { module = "org.jetbrains.kotlin:kotlin-stdlib-jdk7", version.ref = "org-jetbrains-kotlin" }
org-jetbrains-kotlin-kotlin-stdlib-jdk8 = { module = "org.jetbrains.kotlin:kotlin-stdlib-jdk8", version.ref = "org-jetbrains-kotlin" }
org-jetbrains-kotlinx-kotlinx-coroutines-android = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-android", version.ref = "org-jetbrains-kotlinx" }
org-jetbrains-kotlinx-kotlinx-coroutines-bom = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-bom", version.ref = "org-jetbrains-kotlinx" }
org-jetbrains-kotlinx-kotlinx-coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "org-jetbrains-kotlinx" }
org-jetbrains-kotlinx-kotlinx-coroutines-core-jvm = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm", version.ref = "org-jetbrains-kotlinx" }
[plugins]
com-android-application = "com.android.application:7.3.1"
com-android-library = "com.android.library:7.3.1"
com-github-ben-manes-versions = "com.github.ben-manes.versions:0.41.0"
nl-littlerobots-version-catalog-update = "nl.littlerobots.version-catalog-update:0.7.0"
org-jetbrains-kotlin-android = "org.jetbrains.kotlin.android:1.7.20"
フォーマットが統一され、ソートされたきれいなTOMLファイルです。
キーは、kebab-case で重複処理も上手に行ってくれてるように見えます。
👉 【Gradle Version Catalog】libs.versions.toml キー名の形式 camelCase vs kebab-case 
build.gradle 側は更新しないようなので新規作成は安全ですが、既存の場合は、
./gradlew versionCatalogUpdate --interactive
とすると、別のファイル名 libs.versions.updates.toml で書き出してくれるようです。
実行後は gradle ディレクトリを Reload すると作成されてることが確認できます。
[plugins]
# From version 7.3.1 --> 8.0.0-alpha06
android-application = "com.android.application:8.0.0-alpha06"
まずは、参考にまで使ってみました。簡単で便利です。
無駄のない最小限の記述なので、最初の書き出しには使うと良いと思います。
👌 もっと、シンプルでいいような気がするので以下の方法でもやってみました。
👉 「⚠ This project uses Gradle Version Catalogs: this tool may not behave as expected.」→ 今現在、Gradle Version Catalog には gradle-versions-plugin が必須では? 
