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Not within the TOML. You can do such logic with the settings script DSL for version catalogs. You can there also overwrite certain things coming from the TOML.

Yeah, the

.toml

is pretty limited, but Vampire is correct. You can leverage the DSL to add logic: https://docs.gradle.org/current/userguide/platforms.html#sub:version-catalog-declaration We support both in our project:

.toml

and DSL. We use the DSL for the libraries which require some switch defined in

gradle.properties

dependencyResolutionManagement {
    versionCatalogs {
        libs {
            version('someDependency', getDependencyVersion())

            library('someDependency', 'com.maven.coordinates.some-dependency', 'some-dependency').versionRef('someDependency')
        }
    }
}

def getDependencyVersion() {
    def versionSwitch = Boolean.valueOf(getProperties().getOrDefault("dependency.switch", false)
    return versionSwitch ? "2.0" : "1.0"
}