I spent two months screen-sharing to ship one integration. So I rebuilt it on Temporal.

A software engineer describes the difficulty of connecting cloud applications reliably to firewalled on-premises edge systems, drawing on a warehouse-automation project that required extensive custom bidirectional messaging, retry logic, testing, customer deployments, and coordination with remote network teams. To address these challenges, the author built an open-source, egress-only proxy using Temporal as a durable orchestration layer, replacing traditional queues, polling mechanisms, and hand-built failure handling. The proxy maintains a single outbound connection to Temporal, which also serves as a control channel for remotely updating and hot-reloading configuration without restarts, redeployments, or inbound firewall rules. Although the solution has been tested only with local, cloud, and simulated environments rather than production deployments, the author presents it as a reusable pattern intended to improve reliability, visibility, remote management, and message durability for cloud-to-edge integrations.

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