@jyeung the last time I tried, I used this one, it worked for a mediocre size folder, didn't handle the bigger ones though.

# description: Where to import from
# type: string
# required: true
src: 'C:/Users/gfseb/Documents/obsidian-notes/new'

# description: name of vault to import into
# type: string
# required: true
vaultName: obsidian-notes

# description: whether to concatenate everything into one note
# type: boolean
# concatenate: TODO

# description: frontmatter to add to each note
# type: object
# frontmatter: TODO

# description: use the file name as the id
# type: boolean
# fnameAsId: TODO

# description: If concatenate is set, name of destination path
# type: string
# destName: TODO

# description: Don't add uuid to assets
# type: boolean
noAddUUID: true

# description: If you have an index file per directory, merge that file with the directory note
# type: string
# indexName: TODO

# description: Import note metadata. In case of any conflicts, the conflicting fields are prefixed with _import
# type: boolean
# importFrontmatter: true

# description: An optional set of variable mappings, with the key being the variable name in the import source and the value being the resulting variable name in Dendron. See https://wiki.dendron.so/notes/<hash>.html for examples.
# type: object
# frontmatterMapping: TODO