Mutagen Sync

• Two-way synchronization
• Advantage: Performance, because all files reside in the container
• Disadvantage: Redundant data storage (not all files are synchronized)
• Available since ddev 1.18.
• The best integration of Mutagen in a development tool that I know of.

ddev config --mutagen-enabled=true

Configuration

Once Mutagen sync is enabled, the .ddev/mutagen/mutagen.yml file is created.
You can modify it as needed.

It is important to remove the #ddev-generated comment from the file; otherwise, the file will be overwritten every time the project starts!

#ddev-generated
sync:
  defaults:
    mode: "two-way-resolved"
    stageMode: "neighboring"
    ignore:
      paths:
      - "/.git"
      - "/.tarballs"
      - "/.ddev/db_snapshots"
      - "/.ddev/.importdb*"
      - ".DS_Store"
      - ".idea"
      # - "/var"
      # vcs like .git can be ignored for safety, but then some
      # composer operations may fail if they use dev versions/git.
      # vcs: true
    symlink:
      mode: "posix-raw"