Plugin from Vite 8 / Rolldown not assignable to rollupConfig.plugins

[dargmuesli]

Environment

- nitropack: 2.13.4
- vite: 8.1.5 (bundles rolldown ~1.1.5 as its internal bundler)
- rollup: 4.62.2
- @vitejs/plugin-vue: 6.0.8
- typescript: 6.0.3
- node: v24.18.0

Also reproduces via Nuxt 4.5.0 (nitropack 2.13.4, vite 8.1.5); regression from Nuxt 4.4.8, which uses Vite 7/Rollup.

Reproduction

package.json

{
  "name": "nitro-rollup-plugin-repro",
  "private": true,
  "type": "module",
  "devDependencies": {
    "nitropack": "2.13.4",
    "@vitejs/plugin-vue": "6.0.8",
    "vite": "8.1.5",
    "typescript": "6.0.3"
  }
}

nitro.config.ts

import vue from '@vitejs/plugin-vue'
import { defineNitroConfig } from 'nitropack/config'

export default defineNitroConfig({
  rollupConfig: {
    plugins: [vue()],
  },
})

tsconfig.json

{
  "compilerOptions": {
    "strict": true,
    "moduleResolution": "bundler",
    "module": "esnext",
    "target": "es2022",
    "skipLibCheck": true,
    "noEmit": true
  },
  "include": ["nitro.config.ts"]
}

Run: npm install && npx tsc --noEmit -p tsconfig.json

(StackBlitz doesn't load for me at the moment, I need to investigate why still)

Describe the bug

nitro.config.ts:6 fails to type-check:

nitro.config.ts(6,15): error TS2322: Type 'Plugin<Api>' is not assignable to type 'InputPluginOption'.
  Type 'Plugin<Api>' is not assignable to type 'Plugin<any>'.
    Types of property 'augmentChunkHash' are incompatible.
      ...
      Property 'environment' is missing in type
        '.../rollup/dist/rollup".PluginContext'
      but required in type
        '.../rolldown/dist/shared/define-config-....Y'.

rollupConfig.plugins (RollupConfig = InputOptions & {...}) is typed against the rollup package's Plugin/InputPluginOption.

Vite 8 changed its Plugin type to:

interface Plugin<A = any> extends Rolldown.Plugin<A>

so any plugin factory typed against Vite's Plugin (e.g. @vitejs/plugin-vue's vue()) is now structurally a Rolldown plugin. The hook-context shapes diverge: Rolldown's PluginContext requires an environment property that Rollup's PluginContext doesn't have, so a Vite/Rolldown-typed plugin no longer satisfies Nitro's Rollup-typed rollupConfig.plugins.

Additional context

• Possible fixes: loosen RollupConfig.plugins's type to accept Rolldown-shaped plugins as well (e.g. union with Rolldown.Plugin), or accept structurally-looser hook signatures.
• Happy to help narrow this down further or test a fix.

Logs

none beyond the tsc output above

[pi0]

PR (with minimum changes on types) welcome!

[dargmuesli]

• ➡️ fix(types): widen RollupConfig.plugins to accept Rolldown-typed plugins [v3] #4483
• ➡️ fix(types): widen RollupConfig.plugins to accept Rolldown-typed plugins [v2] #4484