catch all routes returns 404 in root

[yanv1991]

In the catch all example you have a structure like this post/[...slug].js and it says it can capture urls like post/1, post/2, but if you try to access post/ directly as a root you get 404, I have a similar scenario like this and I want to be able to handle the root post/ with the catch all route, I tried adding an index.js that is exporting [...slug].js but the issue with this is that generates 2 separate lambdas one for index.js and one for [...slug].js as well. How can I handle this?

[Janpot]

relevant issue: #10488