Cask for "./proton-mail-export-cli"?

[GETandSELECT]

Output of brew config

brew config
HOMEBREW_VERSION: 5.0.3-16-gd47a45b
ORIGIN: https://github.com/Homebrew/brew
HEAD: d47a45b5a24e85aa112ff0300b736b09898e3674
Last commit: 11 hours ago
Branch: main
Core tap HEAD: c625212c25b77466c2a1e06c73e0bd4e02d0ce33
Core tap last commit: 3 hours ago
Core tap JSON: 23 Nov 10:12 UTC
Core cask tap origin: https://github.com/Homebrew/homebrew-cask.git
Core cask tap HEAD: 5b88d524bbdfe97a216e752abca2b925cb75c9ae
Core cask tap last commit: 3 hours ago
Core cask tap JSON: 23 Nov 10:12 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: ["--appdir=/Users/john/Applications"]
HOMEBREW_CLEANUP_MAX_AGE_DAYS: 2
HOMEBREW_COLOR: set
HOMEBREW_DOWNLOAD_CONCURRENCY: 16
HOMEBREW_FORBIDDEN_CASKS: openjdk
HOMEBREW_FORBIDDEN_FORMULAE: openjdk
HOMEBREW_FORBID_PACKAGES_FROM_PATHS: set
HOMEBREW_MAKE_JOBS: 8
HOMEBREW_NO_ANALYTICS: set
HOMEBREW_NO_UPDATE_REPORT_NEW: set
HOMEBREW_SORBET_RUNTIME: set
Homebrew Ruby: 3.4.7 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.7/bin/ruby
CPU: octa-core 64-bit arm_blizzard_avalanche
Clang: 17.0.0 build 1700
Git: 2.52.0 => /opt/homebrew/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 26.1-arm64
CLT: 26.1.0.0.1.1761104275
Xcode: N/A
Rosetta 2: false

Output of brew doctor

brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Some installed formulae are deprecated or disabled.
You should find replacements for the following formulae:
  mdcat

Description of issue

Hi

https://proton.me/support/proton-mail-export-tool

Can I submit this strange tool as Cask (PR)? It's an *.app but CLI only. Can someone check if it will be accepted? It doesn't seem to be Open Source.

./proton-mail-export-cli.app
./proton-mail-export-cli.app/Contents
./proton-mail-export-cli.app/Contents/CodeResources
./proton-mail-export-cli.app/Contents/_CodeSignature
./proton-mail-export-cli.app/Contents/_CodeSignature/CodeResources
./proton-mail-export-cli.app/Contents/_CodeSignature/CodeDirectory
./proton-mail-export-cli.app/Contents/_CodeSignature/CodeRequirements-1
./proton-mail-export-cli.app/Contents/_CodeSignature/CodeSignature
./proton-mail-export-cli.app/Contents/_CodeSignature/CodeRequirements
./proton-mail-export-cli.app/Contents/MacOS
./proton-mail-export-cli.app/Contents/MacOS/proton-mail-export-cli
./proton-mail-export-cli.app/Contents/MacOS/launcher.sh
./proton-mail-export-cli.app/Contents/MacOS/proton-mail-export.dylib
./proton-mail-export-cli.app/Contents/MacOS/proton-mail-export-cli.sh
./proton-mail-export-cli.app/Contents/Resources
./proton-mail-export-cli.app/Contents/Resources/icon.icns
./proton-mail-export-cli.app/Contents/Info.plist

Relevant casks

not yet