Alternativer til kloudspeaker til Raspberry Pi med open source-licens

• Raspberry Pi
  Alle platforme Windows Mac Linux Android iPhone Blackberry iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Raspberry Pi Cloudron Go (Programming Language) CouchDB
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens