`multipass find` expected images

I have multipass 1.0.0, running on macOS 10.14.6 (Mojave) and installed via brew cask.

What is the expected output of multipass find? Even with --show-unsupported, I only see two LTS images and two Snapcraft builders:

$ multipass find --show-unsupported
Image                   Aliases           Version          Description
snapcraft:core          core16            20191219         Snapcraft builder for Core 16
snapcraft:core18                          20191219         Snapcraft builder for Core 18
16.04                   xenial            20191217         Ubuntu 16.04 LTS
18.04                   bionic,lts        20191218         Ubuntu 18.04 LTS

The multipass find docs mention dailies and a devel alias, but neither works:

$ multipass find daily:
find failed: daily is not a supported remote. Please use `multipass find` for list of supported images.
$ multipass find devel
find failed: Unable to find an image matching "devel"

The github repo readme also suggests that I should be seeing several more images:

$ multipass find
Image                   Aliases           Version          Description
core                    core16            20190424         Ubuntu Core 16
core18                                    20190213         Ubuntu Core 18
16.04                   xenial            20190628         Ubuntu 16.04 LTS
18.04                   bionic,lts        20190627.1       Ubuntu 18.04 LTS
18.10                   cosmic            20190628         Ubuntu 18.10
19.04                   disco             20190628         Ubuntu 19.04
daily:19.10             devel,eoan        20190623         Ubuntu 19.10

Is this expected behavior? I feel like I’m missing something fundamental but don’t know what.