Every now and then I come across a limited-run podcast that wrapped up ages ago and I want to add it to my feed. I don't want to manually click through the old episodes one by one, I want to subscribe to it as if it were being published in realtime. Are there any tools that can help me with this?

I think what I'm looking for is some sort of app that republishes an existing RSS feed with a date offset based on whatever recent date you subscribe to it. Even better would be something that lets me specify my own custom drip rate so I can binge through large catalogs at my own pace.

I've been thinking about coding something like this but I don't want to reinvent the wheel if an existing solution is already out there.

Hello,

I saw in another thread being mentioned that there is no use for API for real users other than bots. So wanted to voice some real API uses that I would be interested in:

1. When I post a new blog post, if I find it worthy of sharing here, it would be nice to mirror the comments I get here back on my blog post. I can imagine using API to fetch all the comments from a tildes thread, including the hierarchy relationship. The API would return a JSON with Markdown and/or HTML like the XML that Disqus exports (but JSON). When people want to comment on that post, they can come to tildes to do so, or if they don't want to create an account here, or if they don't have an invite, they can comment via other means that I have (Webmentions, Twitter, email).
2. Second use is make something like hnrss possible.