Ask HN: A website that offers RSS feeds for software releases?

Hi HN!

Here's what I am searching for, but haven't found yet: a website that offers the releases of software as RSS feeds.

I imagine that after logging in, you can search and select software products (from Github, from Gitlab, or even proprietary,...). You then get one RSS feed which combines all releases into one stream.

Creating multiple streams that combine by topic, programming language or whatever would be great too.

Does something like this exist? Or something similar? I know that Github offers feeds for single projects, but it feels tedious to add like 50+ single feeds to the reader.

Thanks for any tips!