@startuml

left to right direction

skinparam backgroundcolor transparent
skinparam component {
	borderColor black
	arrowColor #FA8100
}
skinparam package {
	backgroundcolor white
}

package "External projects" #C6F68D {
	[...] as project1
	[...] as project2
	[...] as project3
}

package "Buildroot" #B794F6 {
	[download]
	[check integrity] as checksum
	[build]
	[install]
}

package "Outputs" {
	[Flashable image] as image #F186C0
	[Other outputs...] as other_outputs #F186C0
}

project1 --> download

download -left-> checksum
checksum --> build
build -right-> install

install --> image
install --> other_outputs

@enduml