I love both services and autopost my SN stuff to #Nostr, but I use tags to keep some of the erroneous stuff I post off of my blog. At this time, I don't think I can tag from SN to control what makes it to the blog. 

 Great! @k00b SN doesn't seem to have hashtags, but maybe you could parse #hashtags when crossposting to nostr and put those into 't' tags?