This got my gears turning… 
Wouldn’t it be cool if you could define a “data entry pattern” in a declarative way (eg: via YAML), and then have that automatically generate both a UI (quick form and/or Asset Link plugin), API (JSON:API resource or custom REST endpoint, along with JSON Schema), and CSV importer? The same could be used to build a local TUI.
This “data entry pattern” would essentially be a codified convention.