[v4] "Done in xms" mismatch

[bep]

I have taken the v4 for a spin, and it's very impressive. I have one question/bug report.

• The "Done in xms" reported at the end from the TailwindCSS CLI seems to be off by a factor of about 10 compared to the wall time reported by time.
• What is this overhead and are there ways to improve this?

time npx tailwindcss -i assets/css/styles.css -o foo.css
≈ tailwindcss v4.0.0-alpha.16

Done in 24ms
npx tailwindcss -i assets/css/styles.css -o foo.css  0.29s user 0.07s system 99% cpu 0.362 total

The CSS file used as input:

@import "tailwindcss";

@theme {
  --color-*: initial;

  --color-blue-100: #3483eb;

  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;

  /* ... */
  --color-green-800: #3f6212;
  --color-green-900: #365314;
  --color-green-950: #1a2e05;
}

[bep]

OK, so dropping the npx, I get this:

 time ./node_modules/.bin/tailwindcss -i assets/css/styles.css -o foo.css
./node_modules/.bin/tailwindcss -i assets/css/styles.css -o foo.css  0.11s user 0.03s system 97% cpu 0.145 total

Which I guess is in line with the expected overehead of runnind NodeJS.