Yes we are working on Vue3 support, on Nextcloud we maintain a large ecosystem, so we need to align a lot of places like Server, apps and libraries to be ready and get the best and most stable software.
So we plan to release all needed libraries within the next few month and work on migrating apps to Vue 3 within the Nextcloud 32 release cycle.
You can see our current state here: Migration to Vue 3 · Issue #13 · nextcloud/standards · GitHub
Sure you can simply install @nextcloud/vue version 9 in its alpha stage:
E.g. a bare minimum package.json to develop Vue 3 apps with Nextcloud:
"dependencies": {
"@nextcloud/vue": "^9.0.0-alpha.5",
"vue": "^3.5.13",
"vue-router": "^4.5.0"
},
"devDependencies": {
"@nextcloud/browserslist-config": "^3.0.1",
"@nextcloud/vite-config": "^2.3.0",
"vite": "^6"
}
So you can already test the alpha version of the components. The version 2.x of the vite config will provide you vue 3 support for bundling with Vite.