Homebrew install command no longer works for two reasons...

[ErinFinnegan]

Tell us about your environment

• Browser and Browser Version:
• After Effects Version:

What did you do? Please explain the steps you took before you encountered the problem.
I followed the directions for install option 6: https://github.com/airbnb/lottie-web?tab=readme-ov-file#option-6

What did you expect to happen?

Brew would install the tool.

What actually happened? Please include as much relevant detail as possible.

The brew command is outdated:

Error: `brew cask` is no longer a `brew` command. Use `brew <command> --cask` instead.

No problem, I used:

brew install lottie --cask

This didn't work either, though:

==> Installing dependencies: exmancmd
==> Downloading https://adobe.com/go/ExManCmdMac
curl: (56) HTTP/2 stream 1 was reset                                                                            

Error: Download failed on Cask 'exmancmd' with message: Download failed: https://adobe.com/go/ExManCmdMac

By coincidence, I happened to write the article about ExManCmd being deprecated

Fortunately, you should be able to rewrite your installer to work using UPIA: https://helpx.adobe.com/in/creative-cloud/help/working-from-the-command-line.html

UPIA is available even if the Creative Cloud desktop app is not installed. (That said, apparently it's an optional install in Enterprise environments, so the Admin needs to install it.)