Absolute URLs through ->toBlocks() for rss feed

Dear Kirbys,

I am using @bnomei’s wonderful plugin to create a feed. My text is in a type: blocks and I am using my own snippet. Links inside blocks can lead to other pages and thankfully in Kirby there’s a way to do this efficiently.

For a feed however, absolute links are necessary to allow users to open the page in a browser window.

Any way to format relative links to absolute links when outputting with toBlocks()?