Cannot edit posts in a deployed version of the app about jamstack-cms HOT 5 OPEN

I had a similar issue deploying a proyect with s3. although it was a more "manual" setup. The solution i found then had to do with 2 things:
One related to cloudfront distributions. But after deploying this project i don't see any new distributions. The other one i don't remember if the solution was s3 rules and/or editing permissions by hand (each and every "app/page" that has some kind of "slug"), but can't use that either, since it doesn't seem like we get an s3 bucket after deploying.

Edit: I documented the first solution here https://bulletninja.com/gatsby-s3-cloudfront-redirection

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I also get this when visiting the admin:

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I think i just solved it. Went to rewrites and redirects and added this:

Then it worked.

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I know i said it works. But i meant you don't get the Access Denied message to be more precise

I don't get it, but i also don't get the article, the key here seems to be related to both redirection parameters i show in my answer above, and reach router:

<EditPage path="/editpage/:id/:title/*" />

But i'm not sure how to pass those to /editpost/index.html

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After inspecting requests more closely (not saying i understand each step, because i don't). I figured there were other redirects missing. Seems to me like there are two competing behaviors, one is the file-system(-like), and the other the web behavior. There is no problem locally without the redirects. Probably gatsby develop and gatsby serve do the right thing for us, but in s3 the file-system(-like) behavior wins unless we add the redirects.
The first redirect solves part of the issue, since what we actually one is in that index.html file, but navigating gatsby pages is not just about those index.html files, but mainly about files named page-data.json. I'd love to say i know how those work, but i think i need to read this first (yes, i haven't read it :( )

What i did is added this rewrite:

And it finally showed things and was editable. I'm guessing other pages, like editpage, need a similar treatment.

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