Thanks to #miniforge and #conda managed to install #DSPSR now to figure out how to get IQ data from an RTL-SDR into a format it can read, might need some GNU Radio flowgraphs.

I found this repo but its rather old:
https://github.com/ccera-astro/pulsar_filterbank

GitHub - ccera-astro/pulsar_filterbank: A Gnu Radio flow-graph for producing raw filterbank files from a live SDR

A Gnu Radio flow-graph for producing raw filterbank files from a live SDR - ccera-astro/pulsar_filterbank

GitHub