Bunsen now has basic DatArchive support, which enables you to create, read, get Info, and write files to a DatArchive. Sharing these dats is still a work-in-progress.
More information is available on using the DatArchive API in Bunsen to create dat applications.
You can test out this DatArchive support using the Bunsen Play dat:
dat://bunsen-play.hashbase.io