What's a modern solution to “I have an #RSS feed that has content that is malformed, and I want to transform the content of the feed and subscribe to the fixed feed instead of the original”? My inclination had been "yahoo pipes” (RIP) and I saw pipes.digital, but I couldn't get that to work. I'm happy to be #selfhosting this; in fact, I'd probably prefer it, but online solutions are acceptable too.