Show HN: Postbase – 100% open source Alternative to Firebase and Supabase [video]

Postbase directly targets the growing market for backend-as-a-service (BaaS) solutions, specifically challenging incumbents like Firebase and Supabase. Its '100% open source' positioning is a critical differentiator, addressing developer pain points related to vendor lock-in, data portability, and control over infrastructure. Enterprises and developers are increasingly wary of proprietary ecosystems, driving demand for open-source alternatives that offer flexibility and transparency. This trend indicates a market shift towards self-hosted or community-driven BaaS platforms, particularly for projects requiring specific compliance, customizability, or cost control beyond what managed services offer. SaaS providers in this space must either embrace open-source models or demonstrate superior value proposition in terms of scalability, security, and developer experience to retain market share against these emerging alternatives.