I went sniffing around with <https://github.com/opencost/opencost/issues?q=is%3Aissue+his...> and <https://github.com/opencost/opencost/issues?q=is%3Aissue+ret...> and didn't see anything, so it may be worth creating an issue to put in on their radar. I would also presume you already have the CUR exports for the old times and just want the analysis done using the annotated k8s data?