FieldOS, Part 1: I Built the Core System and Timed Every Single Hour

In his quest to provide accurate pricing for businesses that require custom field service management software, the author decides to build a complete system from scratch and track its time usage. Titled FieldOS, this system caters to businesses such as HVAC crews, electricians, maintenance techs, and delivery drivers. The author, who manages maintenance across various locations, noticed the inefficiencies of off-the-shelf field service software, prompting him to create something tailored to businesses' specific needs.

FieldOS consists of five core components: a front door for logging jobs, real-time parts tracking, an automated dispatch board, a simple invoice generation process, and a unified system for all five entry points. While constructing the system, the author encounters several issues that must be resolved to ensure the software functions correctly.

For instance, an automatic low-stock alert breaks when combined with the parts-tracking feature, leading to a simple reordering problem that needs fixing. Additionally, an invoice generated through the system fails to list the specific parts and labor charged, which is rectified by adjusting a filtering step. Lastly, a single announcement point is established to prevent contact records from becoming outdated based on the job's origin.

Through this process, the author constructs the core system in just three hours, providing businesses with a real-time, tracked solution that operates seamlessly from job creation to payment.