How do I add a Cask to brew services

[davidolrik]

Output of brew config

HOMEBREW_VERSION: 5.1.1
ORIGIN: https://github.com/Homebrew/brew
HEAD: 894a3d23ac0c8aaf561b9874b528b9cb2e839201
Last commit: 30 hours ago
Branch: stable
Core tap JSON: 24 Mar 09:29 UTC
Core cask tap JSON: 24 Mar 09:29 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_BAT_THEME: tokyonight_night
HOMEBREW_CASK_OPTS: []
HOMEBREW_DOWNLOAD_CONCURRENCY: 24
HOMEBREW_EDITOR: hx
HOMEBREW_FORBID_PACKAGES_FROM_PATHS: set
HOMEBREW_MAKE_JOBS: 12
HOMEBREW_NO_ANALYTICS: set
Homebrew Ruby: 4.0.1 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/4.0.1/bin/ruby
CPU: dodeca-core 64-bit arm_blizzard_avalanche
Clang: 17.0.0 build 1700
Git: 2.53.0 => /opt/homebrew/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 26.3.1-arm64
CLT: 26.3.0.0.1.1771626560
Xcode: 26.3
Metal Toolchain: N/A
Rosetta 2: false

Output of brew doctor

$ brew doctor
Your system is ready to brew.

Description of issue

I want to build a Cask as I have a prebuilt binary - how can I make the cask appear as a service in brew services ?

In a formula I can add a service do block, but that doesn't seem to work for casks.

[SMillerDev]

That's not supported for casks. PRs are welcome to add it though.