it’s not exactly supported lmao (the “recreate record” thing is actually deleting the post and making a new one with the same rkey, and because cids aren’t validated rn the replies n stuff still appear)
but yeah in general anyone can use the api to do whatevies :3
realistically the best workflow would be to post in the app like normal, login to pdsls.dev, search your handle to get to your repo, find the most recent app.bsky.feed.post, click edit and set the createdAt date to some time in the past