X Island: Dynamic Island for AI Coding Agents

I want to install but getting the same error reported by @digisome

First I tried this brew install as shown here: https://xisland.app/docs/

brew install --cask xisland
✔︎ JSON API cask.jws.json                                                                                                                                                   Downloaded   15.5MB/ 15.5MB
✔︎ JSON API formula.jws.json                                                                                                                                                Downloaded   32.0MB/ 32.0MB
Warning: Cask 'xisland' is unavailable: No Cask with this name exists.
==> Searching for similarly named casks...
Error: No casks found for xisland.

Then try the brew install path shown on the landing page:

brew install --cask bluedusk/xisland/x-island
==> Auto-updating Homebrew...
Adjust how often this is run with `$HOMEBREW_AUTO_UPDATE_SECS` or disable with
`$HOMEBREW_NO_AUTO_UPDATE=1`. Hide these hints with `$HOMEBREW_NO_ENV_HINTS=1` (see `man brew`).
==> Tapping bluedusk/xisland
Cloning into '/opt/homebrew/Library/Taps/bluedusk/homebrew-xisland'...
remote: Enumerating objects: 40, done.
remote: Counting objects: 100% (40/40), done.
remote: Compressing objects: 100% (20/20), done.
remote: Total 40 (delta 9), reused 0 (delta 0), pack-reused 0 (from 0)
Receiving objects: 100% (40/40), done.
Resolving deltas: 100% (9/9), done.
Tapped 1 cask (13 files, 10KB).
==> Fetching downloads for: bluedusk/xisland/x-island
✘ Cask x-island (0.12.0)                                                                                                                                                   Verifying     7.7MB/  7.7MB
Error: Cask reports different checksum:     5f7a22bb3abf3986e49d84efc2143af937c34efe835a906e29d7e4ffcda069db
       SHA-256 checksum of downloaded file: 9fe67225facf50d83c283db495851f1abba076dbfe01c6c53672cbbcee20c092