During October 2025, Iostpa enhanced the Vercel Domain Configuration Guide within the is-a-dev/docs repository, focusing on improving clarity around domain setup for Vercel deployments. The work involved updating Markdown documentation to instruct users to leave the A record untouched and adding a warning to verify DNS records assigned by Vercel, addressing common sources of misconfiguration. By applying documentation best practices and leveraging DNS and domain management knowledge, Iostpa reduced the risk of deployment errors and streamlined the self-service process for users. The changes, tracked through Git commits, demonstrated depth in technical writing and attention to detail in documentation workflows.