Anyone know of an RSS-feed generator with timestamps? - eviltoast

I have files marked with a line like this:

date: 2021-01-01

I’ve been usinng Solderpunk’s RSS feed generator so far.

=> https://tildegit.org/solderpunk/gemfeed.git Link

But it only does date by file creation date, which doesn’t work for me.

Any gemini RSS feed generators where the date can be drawn from a variable?