Fostrom, a new IoT cloud platform targeting developers, launched in technical preview. Founders Arjun and Sid, who previously built an automated indoor vertical farm, created Fostrom to solve the infrastructure headaches they faced. The platform offers SDKs in Python, JavaScript, and Elixir, typed schemas for validated payloads, programmable actions executed via JavaScript in WebAssembly, and four global regions for low-latency connections. A key technical innovation is its DuckDB-based replicated multi-tenant data layer, chosen over distributed databases for better consistency and querying. While still in preview, Fostrom aims to simplify connected system development without infrastructure burdens.

Fostrom addresses a specific pain point: the founders spent more time on IoT plumbing than automation logic in their farm project. Their solution emphasizes operational correctness and reliability through deterministic delivery, sequential mailboxes, and observability features. The platform is currently free during preview, with plans to add CLI tools and automatic device monitoring. This launch targets developers building complex connected systems like agriculture, logistics, and research setups where traditional IoT complexity is a major hurdle.

The platform's architecture decisions, particularly the DuckDB choice, represent a significant shift from conventional distributed databases. By focusing on a SQL-based approach, Fostrom simplifies the codebase while maintaining robust data handling. Developers can start using Fostrom immediately, leveraging its SDKs and cloud infrastructure to build correct, secure systems without managing the underlying complexity. The founders are actively seeking feedback to refine the platform before full launch.