obsidian is personal knowledge bases, contains secret & publishable.
front matter tag:publish files're copy, others're not. filter copy tool.
so not split vault & able to use other markdown service. (hugo, quartz, etc.)
fmfcp is Front Matter Filter CoPy tool.
check ".md" file & frontmatter contains "tag: publish" or "draft: true" are copy.
not ".md" file are just copy.
go install github.com/amatagonsk/fmfcp@latest
fmfcp $src $dest