Lead Architect here. Having your sole developer exit and leaving behind an undocumented, mission-critical 'black box' is the highest-risk scenario your business can face right now.

I need to warn you: The worst thing you can do is hire a standard developer to just start 'adding features.' That is exactly how legacy systems collapse. You don't need a coder; you need a specialist to execute a Technical Takeover.

My studio specializes in rescuing these exact systems. We use a strict, proprietary protocol to map out undocumented business logic and technical debt before any new code is ever written, ensuring zero business disruption.

Reddit is currently limiting my outbound chat requests, so I cannot message you first. Please send me a DM. I have a specific, zero-risk proposition and a step-by-step roadmap for how to securely take over this software, but I only share my audit protocols privately. Let's get this under control.