There is a project that has not been updated since last year but its close. I know there are wordpress plugins for posting. 
https://github.com/chakany/nblog

also I know nostr:npub1xdtducdnjerex88gkg2qk2atsdlqsyxqaag4h05jmcpyspqt30wscmntxy does some stuff with ghost on npub pro mabey they can help.