The document proposes a flexible OpenAPI server architecture using Node.js to avoid the inflexibility of traditional servers that require rebooting when new logic is deployed. It suggests using JavaScript's ability to not require pre-compilation and Node.js' asynchronous processing to improve on synchronized traditional servers. The conceptual architecture would parse URI paths to link them to logic modules with names consisting of the OpenAPI name and method, like "testapi_GET.js". An index and server file would run examples to test the proposed flexible architecture.