[danielroe]

app.vue and error.vue import * as nuxtUiLocales from '@nuxt/ui/locale' and pick one at runtime, which can't be tree-shaken, so every Docus site ships all 64 Nuxt UI locales in the entry chunk.

JS preloaded on a docs page	main	branch
playground (single language), raw	1129 kB	977 kB
playground (single language), brotli	294 kB	266 kB
docus.dev (en + fr), raw	1254 kB	1097 kB
docus.dev (en + fr), brotli	337 kB	308 kB

with i18n, this now bundles only the configured locales (plus en as a fallback). without i18n, the locale comes from app.config.ts, so we can't know it at build time... instead we load it in the i18n plugin, alongside the Docus messages it already loads there.

if nuxt/ui#7152 lands, most of this can go away.

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npm i https://pkg.pr.new/docus@1459

commit: 31338ed

[docus-bundle-report]

Production bundle

Comparing ffe694de with 31338ed7. Compressed sizes are calculated from the emitted production assets.

Metric	Base (Brotli)	PR (Brotli)	Δ Brotli	Δ gzip
Client JavaScript	873.8 KiB	846.0 KiB	-27.8 KiB (-3.2%)	-38.0 KiB (-3.7%)
Client CSS	25.2 KiB	25.2 KiB	—	—
Other client assets	339.3 KiB	339.3 KiB	-1 B (-0.0%)	—
Total client assets	1.21 MiB	1.18 MiB	-27.8 KiB (-2.2%)	-38.0 KiB (-2.6%)

Largest module increases

Module	Base (Brotli)	PR (Brotli)	Δ Brotli
virtual:nuxt:node_modules%2F.cache%2Fnuxt%2F.nuxt%2Fdocus%2Fui-locales.mjs	0 B	121 B	+121 B
layer/app/plugins/i18n.ts	916 B	948 B	+32 B (+3.5%)
layer/app/app.vue?vue&type=script&setup=true&lang.ts	1.3 KiB	1.3 KiB	+18 B (+1.3%)
layer/app/error.vue?vue&type=script&setup=true&lang.ts	889 B	906 B	+17 B (+1.9%)
node_modules/@nuxt/ui/dist/runtime/locale/fr.js	1.1 KiB	1.1 KiB	+4 B (+0.4%)

Module values come from Nuxt’s analyzer and are attribution estimates. This workflow is currently report-only.

Workflow run

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Project	Deployment	Actions	Updated
docus	Ready	Preview	Oct 8, 2026 9:09am UTC

[larbish]

Thanks 💚