The punycode module is deprecated (when installed via Homebrew).

[MichaelCharles]

Version of Marp Tool

@marp-team/marp-cli v3.4.0 (w/ @marp-team/marp-core v3.9.0)

Operating System

macOS

Environment

• OS version: macOS Sequoia 15
• Node.js version (Marpit / Marp Core/ Marp CLI): Reproduced with both v18.20.4 and v20.17.0 installed globally. I think that since this was installed with Homebrew, the globally installed Node version is unrelated.
• VS Code version (Marp for VS Code): Not relevant.
• Homebrow Version: 4.3.24

How to reproduce

Install marp-cli via Homebrew: brew install marp-cli

Execute any command,

➜ marp --html presen.md
(node:37034) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
(node:37034) [DEP0180] DeprecationWarning: fs.Stats constructor is deprecated.
[  INFO ] Converting 1 markdown...
[  INFO ] presen.md => presen.html

Expected behavior

I expect that deprecation warnings will not show.

Actual behavior

Deprecation warnings show.

Additional information

This seems to have been already resolved here, and if I install marp-cli via npm install -g @marp-team/marp-cli rather than via brew install marp-cli, even though the versions are identical (@marp-team/marp-cli v3.4.0 (w/ @marp-team/marp-core v3.9.0)) I do not get the deprecation warning. The deprecation warning only appears when installed via Homebrew.

[yhatt]

I think that since this was installed with Homebrew, the globally installed Node version is unrelated.

It is actually related because Homebrew's Marp formula is depending on node formula. Homebrew will install the latest version v22 instead of recommended LTS Node.js version v20. So if the result of node -v is v22.x.x, deprecation warnings may be shown.

That will be fixed by #591, that is going to include in next release Marp CLI v4 (CHANGELOG). Basically, you don't need to care their deprecations for now, but try to install Node.js LTS if you concerned.