I enhanced the #Plurcast --nostr-pow (#NIP13) implementation by using a custom mining setup rather than the library's .pow method, so now it's multithreaded and finishes quicker.
#Plurcast now supports --nostr-pow, enabling #NIP13 to embed proof of work into your Nostr notes. The previous note had a --nostr-pow 22 and took maybe 10-15 seconds to mine.