Sorry to hear. Out of curiosity, did you do anything else to open up sales channels or distribution or remove liabilities? I assume your tech guy was the only one coding.

A company is an entity. And as such should run without it's founders over time. Sounds like you didn't de-risk the company for a long time until a potential liability become real.

You are building a tech product so either you should learn to code or have backup devs that could take the slack and keep on plowing forward.