What about routing jumps for writing jumps to write a dead 308?

[geekskai]

Goals

What about routing jumps for writing jumps to write a dead 308? If I need a 301, how should that work?
For example, in app router, if I type in the address bar of my browser with a slash ending: www.abc.com/demo/ and need a 301 to jump to www.abc.com/demo without a slash ending, what should I do?

Non-Goals

Background

app router and next-intl

Proposal

Change this to be configurable in the config file