diff --git a/bun.lockb b/bun.lockb
new file mode 100755
index 00000000..19ff60d2
Binary files /dev/null and b/bun.lockb differ
diff --git a/create-vocs/init.ts b/create-vocs/init.ts
index 10a2bf59..1350b6bc 100644
--- a/create-vocs/init.ts
+++ b/create-vocs/init.ts
@@ -1,8 +1,6 @@
 import { dirname, resolve } from 'node:path'
 import { fileURLToPath } from 'node:url'
 import { intro, log, outro, text } from '@clack/prompts'
-// @ts-expect-error
-import { detect } from 'detect-package-manager'
 import { default as fs } from 'fs-extra'
 import pc from 'picocolors'
 
diff --git a/package.json b/package.json
index 57cd810b..ebd2010f 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "bun-types": "^1.0.6",
     "fs-extra": "^11.1.1",
     "globby": "^13.2.2",
+    "ora": "^7.0.1",
     "rimraf": "^5.0.5",
     "simple-git-hooks": "^2.9.0",
     "typescript": "^5.2.2"
diff --git a/src/app/components/Outline.tsx b/src/app/components/Outline.tsx
index 63e823e5..1096a97c 100644
--- a/src/app/components/Outline.tsx
+++ b/src/app/components/Outline.tsx
@@ -106,14 +106,16 @@ export function Outline({
     const observer = new IntersectionObserver(([entry]) => {
       if (!active.current) return
 
-      if (entry.isIntersecting) setActiveId(items[items.length - 1].id)
-      else setActiveId(items[items.length - 2].id)
+      const lastItemId = items[items.length - 1].id
+
+      if (entry.isIntersecting) setActiveId(lastItemId)
+      else if (activeId === lastItemId) setActiveId(items[items.length - 2].id)
     })
 
     observer.observe(document.querySelector('[data-bottom-observer]')!)
 
     return () => observer.disconnect()
-  }, [items])
+  }, [activeId, items])
 
   // Intersection observers are a bit unreliable for fast scrolling,
   // use scroll event listener to sync active item.
@@ -151,6 +153,8 @@ export function Outline({
 
   if (items.length === 0) return null
 
+  console.log(activeId)
+
   const levelItems = items.filter((item) => item.level === minLevel)
   return (
     <aside className={styles.root}>
diff --git a/src/cli/commands/build.ts b/src/cli/commands/build.ts
index 901ae926..aa6fb0ab 100644
--- a/src/cli/commands/build.ts
+++ b/src/cli/commands/build.ts
@@ -1,4 +1,53 @@
-export async function build() {
+import ora from 'ora'
+import pc from 'picocolors'
+import { createLogger } from 'vite'
+import type { BuildParameters as BuildParameters_ } from '../../vite/build.js'
+import { version } from '../version.js'
+
+export type BuildParameters = Pick<BuildParameters_, 'logLevel' | 'outDir'>
+
+export async function build({ logLevel, outDir }: BuildParameters) {
   const { build } = await import('../../vite/build.js')
-  await build()
+
+  const useLogger = logLevel !== 'info'
+
+  const start = Date.now()
+
+  const logger = createLogger('info', { allowClearScreen: true })
+
+  const spinner = {
+    client: ora('building bundles...\n'),
+    prerender: ora('prerendering pages...\n'),
+  }
+
+  logger.clearScreen('info')
+  logger.info('')
+  logger.info(`  ${pc.blue('[building]')} ${pc.bold('vocs')}@${pc.dim(`v${version}`)}\n`)
+  await build({
+    hooks: {
+      onClientBuildStart: () => {
+        if (useLogger) spinner.client.start()
+      },
+      onClientBuildEnd: () => {
+        if (useLogger) spinner.client.succeed('bundles built')
+        else logger.info('')
+      },
+      onPrerenderBuildStart: () => {
+        if (useLogger) spinner.prerender.start()
+      },
+      onPrerenderBuildEnd: () => {
+        if (useLogger) spinner.prerender.succeed('prerendered pages')
+      },
+      onScriptsBuildEnd: () => {
+        if (!useLogger) logger.info('')
+      },
+    },
+    logger,
+    logLevel,
+    outDir,
+  })
+
+  const end = Date.now()
+  const time = end - start
+  logger.info(`\n  ${pc.green('[built]')} in ${time / 1000}s`)
 }
diff --git a/src/cli/commands/dev.ts b/src/cli/commands/dev.ts
index 237f7bbb..a7b4d74a 100644
--- a/src/cli/commands/dev.ts
+++ b/src/cli/commands/dev.ts
@@ -1,8 +1,19 @@
+import pc from 'picocolors'
+import { createLogger } from 'vite'
+import { version } from '../version.js'
+
 type DevParameters = { host?: boolean }
 
-export async function dev(params: DevParameters = {}) {
+export async function dev(_: any, { host }: DevParameters = {}) {
   const { createDevServer } = await import('../../vite/dev-server.js')
-  const server = await createDevServer({ host: params.host })
+
+  const server = await createDevServer({ host })
   await server.listen()
+
+  const logger = createLogger()
+  logger.clearScreen('info')
+  logger.info('')
+  logger.info(`  ${pc.green('[running]')} ${pc.bold('vocs')}@${pc.dim(`v${version}`)}`)
+  logger.info('')
   server.printUrls()
 }
diff --git a/src/cli/commands/preview.ts b/src/cli/commands/preview.ts
index 6c35146c..ff127b3c 100644
--- a/src/cli/commands/preview.ts
+++ b/src/cli/commands/preview.ts
@@ -1,5 +1,15 @@
+import pc from 'picocolors'
+import { createLogger } from 'vite'
+import { version } from '../version.js'
+
 export async function preview() {
   const { preview } = await import('../../vite/preview.js')
   const server = await preview()
+
+  const logger = createLogger()
+  logger.clearScreen('info')
+  logger.info('')
+  logger.info(`  ${pc.green('[running]')} ${pc.bold('vocs')}@${pc.dim(`v${version}`)}`)
+  logger.info('')
   server.printUrls()
 }
diff --git a/src/cli/index.ts b/src/cli/index.ts
index a00579d8..9dfb850c 100644
--- a/src/cli/index.ts
+++ b/src/cli/index.ts
@@ -11,7 +11,11 @@ export const cli = cac('vocs')
 
 cli.command('[root]').alias('dev').option('-h, --host', 'Expose host URL').action(dev)
 cli.command('init').option('-n, --name [name]', 'Name of project').action(init)
-cli.command('build').action(build)
+cli
+  .command('build')
+  .option('-l, --logLevel [level]', 'info | warn | error | silent')
+  .option('-o, --outDir [dir]', 'output directory (default: dist)')
+  .action(build)
 cli.command('preview').action(preview)
 
 cli.help()
diff --git a/src/vite/build.ts b/src/vite/build.ts
index 4aadb1ba..ef3431bd 100644
--- a/src/vite/build.ts
+++ b/src/vite/build.ts
@@ -7,46 +7,79 @@ import { prerender } from './plugins/prerender.js'
 
 const __dirname = dirname(fileURLToPath(import.meta.url))
 
-type BuildParameters = {
+export type BuildParameters = {
+  logger?: vite.Logger
+  hooks?: {
+    onClientBuildStart?: () => void
+    onClientBuildEnd?: (
+      output: vite.Rollup.RollupOutput | vite.Rollup.RollupOutput[] | vite.Rollup.RollupWatcher,
+    ) => void
+    onPrerenderBuildStart?: () => void
+    onPrerenderBuildEnd?: (
+      output: vite.Rollup.RollupOutput | vite.Rollup.RollupOutput[] | vite.Rollup.RollupWatcher,
+    ) => void
+    onScriptsBuildStart?: () => void
+    onScriptsBuildEnd?: () => void
+  }
+  logLevel?: vite.LogLevel
   outDir?: string
 }
 
-export async function build({ outDir = 'dist' }: BuildParameters = {}) {
+export async function build({
+  logger,
+  hooks,
+  logLevel = 'silent',
+  outDir = 'dist',
+}: BuildParameters = {}) {
   // client
-  await vite.build({
-    build: {
-      emptyOutDir: true,
-      outDir: resolve(outDir),
-    },
-    root: __dirname,
-  })
+  await Promise.all([
+    (async () => {
+      hooks?.onClientBuildStart?.()
+      const output = await vite.build({
+        build: {
+          emptyOutDir: true,
+          outDir: resolve(outDir),
+        },
+        root: __dirname,
+        logLevel,
+      })
+      hooks?.onClientBuildEnd?.(output)
+      return output
+    })(),
+    (async () => {
+      hooks?.onScriptsBuildStart?.()
+      await vite.build({
+        build: {
+          lib: {
+            formats: ['iife'],
+            name: 'theme',
+            entry: [resolve(__dirname, '../app/utils/initializeTheme.ts')],
+          },
+          minify: true,
+          outDir: resolve(outDir),
+          emptyOutDir: false,
+        },
+        configFile: undefined,
+        logLevel,
+      })
+      hooks?.onScriptsBuildEnd?.()
+    })(),
+  ])
 
-  // server
-  await vite.build({
+  // prerender
+  hooks?.onPrerenderBuildStart?.()
+  const output_prerender = await vite.build({
     build: {
       emptyOutDir: false,
       outDir: resolve(outDir),
       ssr: resolve(__dirname, '../app/index.server.tsx'),
     },
-    plugins: [prerender({ outDir })],
+    logLevel,
+    plugins: [prerender({ logger: logLevel === 'info' ? logger : undefined, outDir })],
     root: __dirname,
   })
+  hooks?.onPrerenderBuildEnd?.(output_prerender)
 
   // copy public folder
   fs.copySync(resolve(__dirname, '../app/public'), resolve(outDir))
-
-  // initialize theme script
-  await vite.build({
-    build: {
-      lib: {
-        formats: ['iife'],
-        name: 'theme',
-        entry: [resolve(__dirname, '../app/utils/initializeTheme.ts')],
-      },
-      minify: true,
-      outDir: resolve(outDir),
-      emptyOutDir: false,
-    },
-    configFile: undefined,
-  })
 }
diff --git a/src/vite/plugins/prerender.ts b/src/vite/plugins/prerender.ts
index e2702149..0132c5c1 100644
--- a/src/vite/plugins/prerender.ts
+++ b/src/vite/plugins/prerender.ts
@@ -1,12 +1,13 @@
 import { mkdirSync, readFileSync, readdirSync, writeFileSync } from 'node:fs'
-import { dirname, resolve } from 'node:path'
-import type { PluginOption } from 'vite'
+import { dirname, relative, resolve } from 'node:path'
+import pc from 'picocolors'
+import { type Logger, type PluginOption } from 'vite'
 
 const root = process.cwd()
 
-type PrerenderPluginParameters = { outDir?: string }
+type PrerenderPluginParameters = { logger?: Logger; outDir?: string }
 
-export function prerender({ outDir = 'dist' }: PrerenderPluginParameters): PluginOption {
+export function prerender({ logger, outDir = 'dist' }: PrerenderPluginParameters): PluginOption {
   return {
     name: 'prerender',
     async closeBundle() {
@@ -18,6 +19,7 @@ export function prerender({ outDir = 'dist' }: PrerenderPluginParameters): Plugi
       // Get routes to prerender.
       const routes = getRoutes(resolve(root, 'docs'))
 
+      logger?.info(`\n${pc.green('✓')} ${routes.length} pages prerendered.`)
       // Prerender each route.
       for (const route of routes) {
         const { head, body } = await mod.prerender(route)
@@ -31,7 +33,9 @@ export function prerender({ outDir = 'dist' }: PrerenderPluginParameters): Plugi
 
         if (!isDir(pathDir)) mkdirSync(pathDir, { recursive: true })
         writeFileSync(path, html)
-        console.log('Prerendered:', path)
+
+        const fileName = path.split('/').pop()!
+        logger?.info(`${pc.dim(relative(root, path).replace(fileName, ''))}${pc.cyan(fileName)}`)
       }
     },
   }