[steamodon]

I wrote a similar tool [1], although it's designed to let you gradually catch up on a backlog rather than write a full feed all at once. Right now it only works on Blogger and WordPress blogs, so I'll need to learn from their trick of pulling from Internet Archive.

[1] https://github.com/steadmon/blog-replay

[jayemar]

I had a similar idea to replay blogs. It'll pull from WordPress or Internet Archive and give you a replay link to add to your feed reader.

https://refeed.to