This POC is made of 3 services (all deployed as cloudflare workers) behind a fastly endpoint
To run via fastly - https://fiddle.fastlydemo.net/fiddle/835f38bf
Server requests for articles
Serves RSS feeds (still a thing)
Knows about redirects and rewrites
To test
curl -v -H "x-rdr-request-uri:/xyz/4/f" https://cloudflare-rdr.mdevilliers.workers.dev/