Build for the Field, Not the Lab: Shipping OTA Updates to NB-IoT Devices

mail@carlosprados.com (Carlos Prados) — Sun, 19 Apr 2026 12:00:00 +0200

Fleet Health Is the Product
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The industry sells IoT as if data were the point. It isn’t. Data is the receipt. Fleet health is the product.

A thousand sensors in the desert, a gas meter in every flat of a rural town, a cold-chain tracker strapped to a pallet crossing a border — none of that is worth anything if the fleet degrades between my laptop and the real world. Every device that silently goes dark, every firmware bug that bakes in without a way out, every slot of flash with a bricked image — each of those is a direct cut into whatever value the product was supposed to deliver.

Breaking the Chains: Why I Built Keystone to Replace AWS Greengrass

mail@carlosprados.com (Carlos Prados) — Mon, 16 Feb 2026 12:00:00 +0100

The Vendor Lock-in Trap
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For the better part of the last decade, the industry narrative around IoT has been dominated by a “Cloud-First” mentality. The premise was seductive: treat your edge devices as dumb pipes and offload the heavy lifting to the cloud’s infinite compute.

However, as we moved from prototypes to production at scale, cracks began to appear in this facade. Latency mattered. Bandwidth costs exploded. But most importantly, we realized that by adopting managed edge runtimes, we were walking into a trap of architectural dependency.

Engineering on EnRedAndo Me - Carlos Prados

Build for the Field, Not the Lab: Shipping OTA Updates to NB-IoT Devices

Fleet Health Is the Product #

Breaking the Chains: Why I Built Keystone to Replace AWS Greengrass

The Vendor Lock-in Trap #

Fleet Health Is the Product
#

The Vendor Lock-in Trap
#