}

    private
    fun reduceStagedProgram(program: Program.Staged): Dynamic =

        Dynamic(
            reduceStage1Program(program.stage1),
            program.stage2.source
        )

    private
    fun reduceStage1Program(stage1: Program.Stage1): Static = when (stage1) {

        is Program.Buildscript ->

            when (programTarget) {