feat: add interactive burst to the TUI logo (#22098)

9 files changed, 768 insertions, 52 deletions

diff --git a/bun.lock b/bun.lock
index 7ff8a3072..eab55c5cf 100644
--- a/bun.lock
+++ b/bun.lock
@@ -371,6 +371,7 @@
         "bonjour-service": "1.3.0",
         "bun-pty": "0.4.8",
         "chokidar": "4.0.3",
+        "cli-sound": "1.1.3",
         "clipboardy": "4.0.0",
         "cross-spawn": "catalog:",
         "decimal.js": "10.5.0",
@@ -2668,6 +2669,8 @@
 
     "cli-cursor": ["[email protected]", "", { "dependencies": { "restore-cursor": "^3.1.0" } }, "sha512-I/zHAwsKf9FqGoXM4WWRACob9+SNukZTd94DWF57E4toouRulbCxcUh6RKUEOQlYTHJnzkPMySvPNaaSLNfLZw=="],
 
+    "cli-sound": ["[email protected]", "", { "dependencies": { "find-exec": "^1.0.3" }, "bin": { "cli-sound": "dist/esm/cli.js" } }, "sha512-dpdF3KS3wjo1fobKG5iU9KyKqzQWAqueymHzZ9epus/dZ40487gAvS6aXFeBul+GiQAQYUTAtUWgQvw6Jftbyg=="],
+
     "cli-spinners": ["[email protected]", "", {}, "sha512-bXfOC4QcT1tKXGorxL3wbJm6XJPDqEnij2gQ2m7ESQuE+/z9YFIWnl/5RpTiKWbMq3EVKR4fRLJGn6DVfu0mpw=="],
 
     "cli-truncate": ["[email protected]", "", { "dependencies": { "slice-ansi": "^5.0.0", "string-width": "^7.0.0" } }, "sha512-nPdaFdQ0h/GEigbPClz11D0v/ZJEwxmeVZGeMo3Z5StPtUTkA9o1lD6QwoirYiSDzbcwn2XcjwmCp68W1IS4TA=="],
@@ -3092,6 +3095,8 @@
 
     "find-babel-config": ["[email protected]", "", { "dependencies": { "json5": "^2.2.3" } }, "sha512-ZfZp1rQyp4gyuxqt1ZqjFGVeVBvmpURMqdIWXbPRfB97Bf6BzdK/xSIbylEINzQ0kB5tlDQfn9HkNXXWsqTqLg=="],
 
+    "find-exec": ["[email protected]", "", { "dependencies": { "shell-quote": "^1.8.1" } }, "sha512-gnG38zW90mS8hm5smNcrBnakPEt+cGJoiMkJwCU0IYnEb0H2NQk0NIljhNW+48oniCriFek/PH6QXbwsJo/qug=="],
+
     "find-my-way": ["[email protected]", "", { "dependencies": { "fast-deep-equal": "^3.1.3", "fast-querystring": "^1.0.0", "safe-regex2": "^5.0.0" } }, "sha512-VW2RfnmscZO5KgBY5XVyKREMW5nMZcxDy+buTOsL+zIPnBlbKm+00sgzoQzq1EVh4aALZLfKdwv6atBGcjvjrQ=="],
 
     "find-my-way-ts": ["[email protected]", "", {}, "sha512-a85L9ZoXtNAey3Y6Z+eBWW658kO/MwR7zIafkIUPUMf3isZG0NCs2pjW2wtjxAKuJPxMAsHUIP4ZPGv0o5gyTA=="],
@@ -4412,6 +4417,8 @@
 
     "shebang-regex": ["[email protected]", "", {}, "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A=="],
 
+    "shell-quote": ["[email protected]", "", {}, "sha512-ObmnIF4hXNg1BqhnHmgbDETF8dLPCggZWBjkQfhZpbszZnYur5DUljTcCHii5LC3J5E0yeO/1LIMyH+UvHQgyw=="],
+
     "shiki": ["[email protected]", "", { "dependencies": { "@shikijs/core": "3.20.0", "@shikijs/engine-javascript": "3.20.0", "@shikijs/engine-oniguruma": "3.20.0", "@shikijs/langs": "3.20.0", "@shikijs/themes": "3.20.0", "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-kgCOlsnyWb+p0WU+01RjkCH+eBVsjL1jOwUYWv0YDWkM2/A46+LDKVs5yZCUXjJG6bj4ndFoAg5iLIIue6dulg=="],
 
     "shikiji": ["[email protected]", "", { "dependencies": { "hast-util-to-html": "^9.0.0" } }, "sha512-4T7X39csvhT0p7GDnq9vysWddf2b6BeioiN3Ymhnt3xcy9tXmDcnsEFVxX18Z4YcQgEE/w48dLJ4pPPUcG9KkA=="],
diff --git a/packages/opencode/package.json b/packages/opencode/package.json
index f5cc0e0a9..fcaac7b35 100644
--- a/packages/opencode/package.json
+++ b/packages/opencode/package.json
@@ -128,6 +128,7 @@
     "bonjour-service": "1.3.0",
     "bun-pty": "0.4.8",
     "chokidar": "4.0.3",
+    "cli-sound": "1.1.3",
     "clipboardy": "4.0.0",
     "cross-spawn": "catalog:",
     "decimal.js": "10.5.0",
diff --git a/packages/opencode/src/audio.d.ts b/packages/opencode/src/audio.d.ts
new file mode 100644
index 000000000..54a86efa3
--- /dev/null
+++ b/packages/opencode/src/audio.d.ts
@@ -0,0 +1,4 @@
+declare module "*.wav" {
+  const file: string
+  export default file
+}
diff --git a/packages/opencode/src/cli/cmd/tui/asset/charge.wav b/packages/opencode/src/cli/cmd/tui/asset/charge.wav
new file mode 100644
index 000000000..d9597899c
--- /dev/null
+++ b/packages/opencode/src/cli/cmd/tui/asset/charge.wav
diff --git a/packages/opencode/src/cli/cmd/tui/asset/pulse-a.wav b/packages/opencode/src/cli/cmd/tui/asset/pulse-a.wav
new file mode 100644
index 000000000..2ebb6a38b
--- /dev/null
+++ b/packages/opencode/src/cli/cmd/tui/asset/pulse-a.wav
diff --git a/packages/opencode/src/cli/cmd/tui/asset/pulse-b.wav b/packages/opencode/src/cli/cmd/tui/asset/pulse-b.wav
new file mode 100644
index 000000000..4e1b59c96
--- /dev/null
+++ b/packages/opencode/src/cli/cmd/tui/asset/pulse-b.wav
diff --git a/packages/opencode/src/cli/cmd/tui/asset/pulse-c.wav b/packages/opencode/src/cli/cmd/tui/asset/pulse-c.wav
new file mode 100644
index 000000000..feb56cacd
--- /dev/null
+++ b/packages/opencode/src/cli/cmd/tui/asset/pulse-c.wav
diff --git a/packages/opencode/src/cli/cmd/tui/component/logo.tsx b/packages/opencode/src/cli/cmd/tui/component/logo.tsx
index 8e6208b14..51cf69dc1 100644
--- a/packages/opencode/src/cli/cmd/tui/component/logo.tsx
+++ b/packages/opencode/src/cli/cmd/tui/component/logo.tsx
@@ -1,82 +1,630 @@
-import { TextAttributes, RGBA } from "@opentui/core"
-import { For, type JSX } from "solid-js"
+import { BoxRenderable, MouseButton, MouseEvent, RGBA, TextAttributes } from "@opentui/core"
+import { For, createMemo, createSignal, onCleanup, type JSX } from "solid-js"
 import { useTheme, tint } from "@tui/context/theme"
-import { logo, marks } from "@/cli/logo"
+import { Sound } from "@tui/util/sound"
+import { logo } from "@/cli/logo"
 
 // Shadow markers (rendered chars in parens):
 // _ = full shadow cell (space with bg=shadow)
 // ^ = letter top, shadow bottom (▀ with fg=letter, bg=shadow)
 // ~ = shadow top only (▀ with fg=shadow)
-const SHADOW_MARKER = new RegExp(`[${marks}]`)
+const GAP = 1
+const WIDTH = 0.76
+const GAIN = 2.3
+const FLASH = 2.15
+const TRAIL = 0.28
+const SWELL = 0.24
+const WIDE = 1.85
+const DRIFT = 1.45
+const EXPAND = 1.62
+const LIFE = 1020
+const CHARGE = 3000
+const HOLD = 90
+const SINK = 40
+const ARC = 2.2
+const FORK = 1.2
+const DIM = 1.04
+const KICK = 0.86
+const LAG = 60
+const SUCK = 0.34
+const SHIMMER_IN = 60
+const SHIMMER_OUT = 2.8
+const TRACE = 0.033
+const TAIL = 1.8
+const TRACE_IN = 200
+const GLOW_OUT = 1600
+const PEAK = RGBA.fromInts(255, 255, 255)
+
+type Ring = {
+  x: number
+  y: number
+  at: number
+  force: number
+  kick: number
+}
+
+type Hold = {
+  x: number
+  y: number
+  at: number
+  glyph: number | undefined
+}
+
+type Release = {
+  x: number
+  y: number
+  at: number
+  glyph: number | undefined
+  level: number
+  rise: number
+}
+
+type Glow = {
+  glyph: number
+  at: number
+  force: number
+}
+
+type Frame = {
+  t: number
+  list: Ring[]
+  hold: Hold | undefined
+  release: Release | undefined
+  glow: Glow | undefined
+  spark: number
+}
+
+const LEFT = logo.left[0]?.length ?? 0
+const FULL = logo.left.map((line, i) => line + " ".repeat(GAP) + logo.right[i])
+const SPAN = Math.hypot(FULL[0]?.length ?? 0, FULL.length * 2) * 0.94
+const NEAR = [
+  [1, 0],
+  [1, 1],
+  [0, 1],
+  [-1, 1],
+  [-1, 0],
+  [-1, -1],
+  [0, -1],
+  [1, -1],
+] as const
+
+type Trace = {
+  glyph: number
+  i: number
+  l: number
+}
+
+function clamp(n: number) {
+  return Math.max(0, Math.min(1, n))
+}
+
+function lerp(a: number, b: number, t: number) {
+  return a + (b - a) * clamp(t)
+}
+
+function ease(t: number) {
+  const p = clamp(t)
+  return p * p * (3 - 2 * p)
+}
+
+function push(t: number) {
+  const p = clamp(t)
+  return ease(p * p)
+}
+
+function ramp(t: number, start: number, end: number) {
+  if (end <= start) return ease(t >= end ? 1 : 0)
+  return ease((t - start) / (end - start))
+}
+
+function glow(base: RGBA, theme: ReturnType<typeof useTheme>["theme"], n: number) {
+  const mid = tint(base, theme.primary, 0.84)
+  const top = tint(theme.primary, PEAK, 0.96)
+  if (n <= 1) return tint(base, mid, Math.min(1, Math.sqrt(Math.max(0, n)) * 1.14))
+  return tint(mid, top, Math.min(1, 1 - Math.exp(-2.4 * (n - 1))))
+}
+
+function shade(base: RGBA, theme: ReturnType<typeof useTheme>["theme"], n: number) {
+  if (n >= 0) return glow(base, theme, n)
+  return tint(base, theme.background, Math.min(0.82, -n * 0.64))
+}
+
+function ghost(n: number, scale: number) {
+  if (n < 0) return n
+  return n * scale
+}
+
+function noise(x: number, y: number, t: number) {
+  const n = Math.sin(x * 12.9898 + y * 78.233 + t * 0.043) * 43758.5453
+  return n - Math.floor(n)
+}
+
+function lit(char: string) {
+  return char !== " " && char !== "_" && char !== "~"
+}
+
+function key(x: number, y: number) {
+  return `${x},${y}`
+}
+
+function route(list: Array<{ x: number; y: number }>) {
+  const left = new Map(list.map((item) => [key(item.x, item.y), item]))
+  const path: Array<{ x: number; y: number }> = []
+  let cur = [...left.values()].sort((a, b) => a.y - b.y || a.x - b.x)[0]
+  let dir = { x: 1, y: 0 }
+
+  while (cur) {
+    path.push(cur)
+    left.delete(key(cur.x, cur.y))
+    if (!left.size) return path
+
+    const next = NEAR.map(([dx, dy]) => left.get(key(cur.x + dx, cur.y + dy)))
+      .filter((item): item is { x: number; y: number } => !!item)
+      .sort((a, b) => {
+        const ax = a.x - cur.x
+        const ay = a.y - cur.y
+        const bx = b.x - cur.x
+        const by = b.y - cur.y
+        const adot = ax * dir.x + ay * dir.y
+        const bdot = bx * dir.x + by * dir.y
+        if (adot !== bdot) return bdot - adot
+        return Math.abs(ax) + Math.abs(ay) - (Math.abs(bx) + Math.abs(by))
+      })[0]
+
+    if (!next) {
+      cur = [...left.values()].sort((a, b) => {
+        const da = (a.x - cur.x) ** 2 + (a.y - cur.y) ** 2
+        const db = (b.x - cur.x) ** 2 + (b.y - cur.y) ** 2
+        return da - db
+      })[0]
+      dir = { x: 1, y: 0 }
+      continue
+    }
+
+    dir = { x: next.x - cur.x, y: next.y - cur.y }
+    cur = next
+  }
+
+  return path
+}
+
+function mapGlyphs() {
+  const cells = [] as Array<{ x: number; y: number }>
+
+  for (let y = 0; y < FULL.length; y++) {
+    for (let x = 0; x < (FULL[y]?.length ?? 0); x++) {
+      if (lit(FULL[y]?.[x] ?? " ")) cells.push({ x, y })
+    }
+  }
+
+  const all = new Map(cells.map((item) => [key(item.x, item.y), item]))
+  const seen = new Set<string>()
+  const glyph = new Map<string, number>()
+  const trace = new Map<string, Trace>()
+  const center = new Map<number, { x: number; y: number }>()
+  let id = 0
+
+  for (const item of cells) {
+    const start = key(item.x, item.y)
+    if (seen.has(start)) continue
+    const stack = [item]
+    const part = [] as Array<{ x: number; y: number }>
+    seen.add(start)
+
+    while (stack.length) {
+      const cur = stack.pop()!
+      part.push(cur)
+      glyph.set(key(cur.x, cur.y), id)
+      for (const [dx, dy] of NEAR) {
+        const next = all.get(key(cur.x + dx, cur.y + dy))
+        if (!next) continue
+        const mark = key(next.x, next.y)
+        if (seen.has(mark)) continue
+        seen.add(mark)
+        stack.push(next)
+      }
+    }
+
+    const path = route(part)
+    path.forEach((cell, i) => trace.set(key(cell.x, cell.y), { glyph: id, i, l: path.length }))
+    center.set(id, {
+      x: part.reduce((sum, item) => sum + item.x, 0) / part.length + 0.5,
+      y: (part.reduce((sum, item) => sum + item.y, 0) / part.length) * 2 + 1,
+    })
+    id++
+  }
+
+  return { glyph, trace, center }
+}
+
+const MAP = mapGlyphs()
+
+function shimmer(x: number, y: number, frame: Frame) {
+  return frame.list.reduce((best, item) => {
+    const age = frame.t - item.at
+    if (age < SHIMMER_IN || age > LIFE) return best
+    const dx = x + 0.5 - item.x
+    const dy = y * 2 + 1 - item.y
+    const dist = Math.hypot(dx, dy)
+    const p = age / LIFE
+    const r = SPAN * (1 - (1 - p) ** EXPAND)
+    const lag = r - dist
+    if (lag < 0.18 || lag > SHIMMER_OUT) return best
+    const band = Math.exp(-(((lag - 1.05) / 0.68) ** 2))
+    const wobble = 0.5 + 0.5 * Math.sin(frame.t * 0.035 + x * 0.9 + y * 1.7)
+    const n = band * wobble * (1 - p) ** 1.45
+    if (n > best) return n
+    return best
+  }, 0)
+}
+
+function remain(x: number, y: number, item: Release, t: number) {
+  const age = t - item.at
+  if (age < 0 || age > LIFE) return 0
+  const p = age / LIFE
+  const dx = x + 0.5 - item.x - 0.5
+  const dy = y * 2 + 1 - item.y * 2 - 1
+  const dist = Math.hypot(dx, dy)
+  const r = SPAN * (1 - (1 - p) ** EXPAND)
+  if (dist > r) return 1
+  return clamp((r - dist) / 1.35 < 1 ? 1 - (r - dist) / 1.35 : 0)
+}
+
+function wave(x: number, y: number, frame: Frame, live: boolean) {
+  return frame.list.reduce((sum, item) => {
+    const age = frame.t - item.at
+    if (age < 0 || age > LIFE) return sum
+    const p = age / LIFE
+    const dx = x + 0.5 - item.x
+    const dy = y * 2 + 1 - item.y
+    const dist = Math.hypot(dx, dy)
+    const r = SPAN * (1 - (1 - p) ** EXPAND)
+    const fade = (1 - p) ** 1.32
+    const j = 1.02 + noise(x + item.x * 0.7, y + item.y * 0.7, item.at * 0.002 + age * 0.06) * 0.52
+    const edge = Math.exp(-(((dist - r) / WIDTH) ** 2)) * GAIN * fade * item.force * j
+    const swell = Math.exp(-(((dist - Math.max(0, r - DRIFT)) / WIDE) ** 2)) * SWELL * fade * item.force
+    const trail = dist < r ? Math.exp(-(r - dist) / 2.4) * TRAIL * fade * item.force * lerp(0.92, 1.22, j) : 0
+    const flash = Math.exp(-(dist * dist) / 3.2) * FLASH * item.force * Math.max(0, 1 - age / 140) * lerp(0.95, 1.18, j)
+    const kick = Math.exp(-(dist * dist) / 2) * item.kick * Math.max(0, 1 - age / 100)
+    const suck = Math.exp(-(((dist - 1.25) / 0.75) ** 2)) * item.kick * SUCK * Math.max(0, 1 - age / 110)
+    const wake = live && dist < r ? Math.exp(-(r - dist) / 1.25) * 0.32 * fade : 0
+    return sum + edge + swell + trail + flash + wake - kick - suck
+  }, 0)
+}
+
+function field(x: number, y: number, frame: Frame) {
+  const held = frame.hold
+  const rest = frame.release
+  const item = held ?? rest
+  if (!item) return 0
+  const rise = held ? ramp(frame.t - held.at, HOLD, CHARGE) : rest!.rise
+  const level = held ? push(rise) : rest!.level
+  const body = rise
+  const storm = level * level
+  const sink = held ? ramp(frame.t - held.at, SINK, CHARGE) : rest!.rise
+  const dx = x + 0.5 - item.x - 0.5
+  const dy = y * 2 + 1 - item.y * 2 - 1
+  const dist = Math.hypot(dx, dy)
+  const angle = Math.atan2(dy, dx)
+  const spin = frame.t * lerp(0.008, 0.018, storm)
+  const dim = lerp(0, DIM, sink) * lerp(0.99, 1.01, 0.5 + 0.5 * Math.sin(frame.t * 0.014))
+  const core = Math.exp(-(dist * dist) / Math.max(0.22, lerp(0.22, 3.2, body))) * lerp(0.42, 2.45, body)
+  const shell =
+    Math.exp(-(((dist - lerp(0.16, 2.05, body)) / Math.max(0.18, lerp(0.18, 0.82, body))) ** 2)) * lerp(0.1, 0.95, body)
+  const ember =
+    Math.exp(-(((dist - lerp(0.45, 2.65, body)) / Math.max(0.14, lerp(0.14, 0.62, body))) ** 2)) *
+    lerp(0.02, 0.78, body)
+  const arc = Math.max(0, Math.cos(angle * 3 - spin + frame.spark * 2.2)) ** 8
+  const seam = Math.max(0, Math.cos(angle * 5 + spin * 1.55)) ** 12
+  const ring = Math.exp(-(((dist - lerp(1.05, 3, level)) / 0.48) ** 2)) * arc * lerp(0.03, 0.5 + ARC, storm)
+  const fork = Math.exp(-(((dist - (1.55 + storm * 2.1)) / 0.36) ** 2)) * seam * storm * FORK
+  const spark = Math.max(0, noise(x, y, frame.t) - lerp(0.94, 0.66, storm)) * lerp(0, 5.4, storm)
+  const glitch = spark * Math.exp(-dist / Math.max(1.2, 3.1 - storm))
+  const crack = Math.max(0, Math.cos((dx - dy) * 1.6 + spin * 2.1)) ** 18
+  const lash = crack * Math.exp(-(((dist - (1.95 + storm * 2)) / 0.28) ** 2)) * storm * 1.1
+  const flicker =
+    Math.max(0, noise(item.x * 3.1, item.y * 2.7, frame.t * 1.7) - 0.72) *
+    Math.exp(-(dist * dist) / 0.15) *
+    lerp(0.08, 0.42, body)
+  const fade = frame.release && !frame.hold ? remain(x, y, frame.release, frame.t) : 1
+  return (core + shell + ember + ring + fork + glitch + lash + flicker - dim) * fade
+}
+
+function pick(x: number, y: number, frame: Frame) {
+  const held = frame.hold
+  const rest = frame.release
+  const item = held ?? rest
+  if (!item) return 0
+  const rise = held ? ramp(frame.t - held.at, HOLD, CHARGE) : rest!.rise
+  const dx = x + 0.5 - item.x - 0.5
+  const dy = y * 2 + 1 - item.y * 2 - 1
+  const dist = Math.hypot(dx, dy)
+  const fade = frame.release && !frame.hold ? remain(x, y, frame.release, frame.t) : 1
+  return Math.exp(-(dist * dist) / 1.7) * lerp(0.2, 0.96, rise) * fade
+}
+
+function select(x: number, y: number) {
+  const direct = MAP.glyph.get(key(x, y))
+  if (direct !== undefined) return direct
+
+  const near = NEAR.map(([dx, dy]) => MAP.glyph.get(key(x + dx, y + dy))).find(
+    (item): item is number => item !== undefined,
+  )
+  return near
+}
+
+function trace(x: number, y: number, frame: Frame) {
+  const held = frame.hold
+  const rest = frame.release
+  const item = held ?? rest
+  if (!item || item.glyph === undefined) return 0
+  const step = MAP.trace.get(key(x, y))
+  if (!step || step.glyph !== item.glyph || step.l < 2) return 0
+  const age = frame.t - item.at
+  const rise = held ? ramp(age, HOLD, CHARGE) : rest!.rise
+  const appear = held ? ramp(age, 0, TRACE_IN) : 1
+  const speed = lerp(TRACE * 0.48, TRACE * 0.88, rise)
+  const head = (age * speed) % step.l
+  const dist = Math.min(Math.abs(step.i - head), step.l - Math.abs(step.i - head))
+  const tail = (head - TAIL + step.l) % step.l
+  const lag = Math.min(Math.abs(step.i - tail), step.l - Math.abs(step.i - tail))
+  const fade = frame.release && !frame.hold ? remain(x, y, frame.release, frame.t) : 1
+  const core = Math.exp(-((dist / 1.05) ** 2)) * lerp(0.8, 2.35, rise)
+  const glow = Math.exp(-((dist / 1.85) ** 2)) * lerp(0.08, 0.34, rise)
+  const trail = Math.exp(-((lag / 1.45) ** 2)) * lerp(0.04, 0.42, rise)
+  return (core + glow + trail) * appear * fade
+}
+
+function bloom(x: number, y: number, frame: Frame) {
+  const item = frame.glow
+  if (!item) return 0
+  const glyph = MAP.glyph.get(key(x, y))
+  if (glyph !== item.glyph) return 0
+  const age = frame.t - item.at
+  if (age < 0 || age > GLOW_OUT) return 0
+  const p = age / GLOW_OUT
+  const flash = (1 - p) ** 2
+  const dx = x + 0.5 - MAP.center.get(item.glyph)!.x
+  const dy = y * 2 + 1 - MAP.center.get(item.glyph)!.y
+  const bias = Math.exp(-((Math.hypot(dx, dy) / 2.8) ** 2))
+  return lerp(item.force, item.force * 0.18, p) * lerp(0.72, 1.1, bias) * flash
+}
 
 export function Logo() {
   const { theme } = useTheme()
+  const [rings, setRings] = createSignal<Ring[]>([])
+  const [hold, setHold] = createSignal<Hold>()
+  const [release, setRelease] = createSignal<Release>()
+  const [glow, setGlow] = createSignal<Glow>()
+  const [now, setNow] = createSignal(0)
+  let box: BoxRenderable | undefined
+  let timer: ReturnType<typeof setInterval> | undefined
+  let hum = false
+
+  const stop = () => {
+    if (!timer) return
+    clearInterval(timer)
+    timer = undefined
+  }
 
-  const renderLine = (line: string, fg: RGBA, bold: boolean): JSX.Element[] => {
-    const shadow = tint(theme.background, fg, 0.25)
+  const tick = () => {
+    const t = performance.now()
+    setNow(t)
+    const item = hold()
+    if (item && !hum && t - item.at >= HOLD) {
+      hum = true
+      Sound.start()
+    }
+    if (item && t - item.at >= CHARGE) {
+      burst(item.x, item.y)
+    }
+    let live = false
+    setRings((list) => {
+      const next = list.filter((item) => t - item.at < LIFE)
+      live = next.length > 0
+      return next
+    })
+    const flash = glow()
+    if (flash && t - flash.at >= GLOW_OUT) {
+      setGlow(undefined)
+    }
+    if (!live) setRelease(undefined)
+    if (live || hold() || release() || glow()) return
+    stop()
+  }
+
+  const start = () => {
+    if (timer) return
+    timer = setInterval(tick, 16)
+  }
+
+  const hit = (x: number, y: number) => {
+    const char = FULL[y]?.[x]
+    return char !== undefined && char !== " "
+  }
+
+  const press = (x: number, y: number, t: number) => {
+    const last = hold()
+    if (last) burst(last.x, last.y)
+    setNow(t)
+    if (!last) setRelease(undefined)
+    setHold({ x, y, at: t, glyph: select(x, y) })
+    hum = false
+    start()
+  }
+
+  const burst = (x: number, y: number) => {
+    const item = hold()
+    if (!item) return
+    hum = false
+    const t = performance.now()
+    const age = t - item.at
+    const rise = ramp(age, HOLD, CHARGE)
+    const level = push(rise)
+    setHold(undefined)
+    setRelease({ x, y, at: t, glyph: item.glyph, level, rise })
+    if (item.glyph !== undefined) {
+      setGlow({ glyph: item.glyph, at: t, force: lerp(0.18, 1.5, rise * level) })
+    }
+    setRings((list) => [
+      ...list,
+      {
+        x: x + 0.5,
+        y: y * 2 + 1,
+        at: t,
+        force: lerp(0.82, 2.55, level),
+        kick: lerp(0.32, 0.32 + KICK, level),
+      },
+    ])
+    setNow(t)
+    start()
+    Sound.pulse(lerp(0.8, 1, level))
+  }
+
+  const frame = createMemo(() => {
+    const t = now()
+    const item = hold()
+    return {
+      t,
+      list: rings(),
+      hold: item,
+      release: release(),
+      glow: glow(),
+      spark: item ? noise(item.x, item.y, t) : 0,
+    }
+  })
+
+  const dusk = createMemo(() => {
+    const base = frame()
+    const t = base.t - LAG
+    const item = base.hold
+    return {
+      t,
+      list: base.list,
+      hold: item,
+      release: base.release,
+      glow: base.glow,
+      spark: item ? noise(item.x, item.y, t) : 0,
+    }
+  })
+
+  const renderLine = (
+    line: string,
+    y: number,
+    ink: RGBA,
+    bold: boolean,
+    off: number,
+    frame: Frame,
+    dusk: Frame,
+  ): JSX.Element[] => {
+    const shadow = tint(theme.background, ink, 0.25)
     const attrs = bold ? TextAttributes.BOLD : undefined
-    const elements: JSX.Element[] = []
-    let i = 0
-
-    while (i < line.length) {
-      const rest = line.slice(i)
-      const markerIndex = rest.search(SHADOW_MARKER)
-
-      if (markerIndex === -1) {
-        elements.push(
-          <text fg={fg} attributes={attrs} selectable={false}>
-            {rest}
-          </text>,
+
+    return [...line].map((char, i) => {
+      const h = field(off + i, y, frame)
+      const n = wave(off + i, y, frame, lit(char)) + h
+      const s = wave(off + i, y, dusk, false) + h
+      const p = lit(char) ? pick(off + i, y, frame) : 0
+      const e = lit(char) ? trace(off + i, y, frame) : 0
+      const b = lit(char) ? bloom(off + i, y, frame) : 0
+      const q = shimmer(off + i, y, frame)
+
+      if (char === "_") {
+        return (
+          <text
+            fg={shade(ink, theme, s * 0.08)}
+            bg={shade(shadow, theme, ghost(s, 0.24) + ghost(q, 0.06))}
+            attributes={attrs}
+            selectable={false}
+          >
+            {" "}
+          </text>
         )
-        break
       }
 
-      if (markerIndex > 0) {
-        elements.push(
-          <text fg={fg} attributes={attrs} selectable={false}>
-            {rest.slice(0, markerIndex)}
-          </text>,
+      if (char === "^") {
+        return (
+          <text
+            fg={shade(ink, theme, n + p + e + b)}
+            bg={shade(shadow, theme, ghost(s, 0.18) + ghost(q, 0.05) + ghost(b, 0.08))}
+            attributes={attrs}
+            selectable={false}
+          >
+            ▀
+          </text>
         )
       }
 
-      const marker = rest[markerIndex]
-      switch (marker) {
-        case "_":
-          elements.push(
-            <text fg={fg} bg={shadow} attributes={attrs} selectable={false}>
-              {" "}
-            </text>,
-          )
-          break
-        case "^":
-          elements.push(
-            <text fg={fg} bg={shadow} attributes={attrs} selectable={false}>
-              ▀
-            </text>,
-          )
-          break
-        case "~":
-          elements.push(
-            <text fg={shadow} attributes={attrs} selectable={false}>
-              ▀
-            </text>,
-          )
-          break
+      if (char === "~") {
+        return (
+          <text fg={shade(shadow, theme, ghost(s, 0.22) + ghost(q, 0.05))} attributes={attrs} selectable={false}>
+            ▀
+          </text>
+        )
       }
 
-      i += markerIndex + 1
+      if (char === " ") {
+        return (
+          <text fg={ink} attributes={attrs} selectable={false}>
+            {char}
+          </text>
+        )
+      }
+
+      return (
+        <text fg={shade(ink, theme, n + p + e + b)} attributes={attrs} selectable={false}>
+          {char}
+        </text>
+      )
+    })
+  }
+
+  onCleanup(() => {
+    stop()
+    hum = false
+    Sound.dispose()
+  })
+
+  const mouse = (evt: MouseEvent) => {
+    if (!box) return
+    if ((evt.type === "down" || evt.type === "drag") && evt.button === MouseButton.LEFT) {
+      const x = evt.x - box.x
+      const y = evt.y - box.y
+      if (!hit(x, y)) return
+      if (evt.type === "drag" && hold()) return
+      evt.preventDefault()
+      evt.stopPropagation()
+      const t = performance.now()
+      press(x, y, t)
+      return
     }
 
-    return elements
+    if (!hold()) return
+    if (evt.type === "up") {
+      const item = hold()
+      if (!item) return
+      burst(item.x, item.y)
+    }
   }
 
   return (
-    <box>
+    <box ref={(item: BoxRenderable) => (box = item)}>
+      <box
+        position="absolute"
+        top={0}
+        left={0}
+        width={FULL[0]?.length ?? 0}
+        height={FULL.length}
+        zIndex={1}
+        onMouse={mouse}
+      />
       <For each={logo.left}>
         {(line, index) => (
           <box flexDirection="row" gap={1}>
-            <box flexDirection="row">{renderLine(line, theme.textMuted, false)}</box>
-            <box flexDirection="row">{renderLine(logo.right[index()], theme.text, true)}</box>
+            <box flexDirection="row">{renderLine(line, index(), theme.textMuted, false, 0, frame(), dusk())}</box>
+            <box flexDirection="row">
+              {renderLine(logo.right[index()], index(), theme.text, true, LEFT + GAP, frame(), dusk())}
+            </box>
           </box>
         )}
       </For>
diff --git a/packages/opencode/src/cli/cmd/tui/util/sound.ts b/packages/opencode/src/cli/cmd/tui/util/sound.ts
new file mode 100644
index 000000000..d3a8db8b4
--- /dev/null
+++ b/packages/opencode/src/cli/cmd/tui/util/sound.ts
@@ -0,0 +1,156 @@
+import { Player } from "cli-sound"
+import { mkdirSync } from "node:fs"
+import { tmpdir } from "node:os"
+import { basename, join } from "node:path"
+import { Process } from "@/util/process"
+import { which } from "@/util/which"
+import pulseA from "../asset/pulse-a.wav" with { type: "file" }
+import pulseB from "../asset/pulse-b.wav" with { type: "file" }
+import pulseC from "../asset/pulse-c.wav" with { type: "file" }
+import charge from "../asset/charge.wav" with { type: "file" }
+
+const FILE = [pulseA, pulseB, pulseC]
+
+const HUM = charge
+const DIR = join(tmpdir(), "opencode-sfx")
+
+const LIST = [
+  "ffplay",
+  "mpv",
+  "mpg123",
+  "mpg321",
+  "mplayer",
+  "afplay",
+  "play",
+  "omxplayer",
+  "aplay",
+  "cmdmp3",
+  "cvlc",
+  "powershell.exe",
+] as const
+
+type Kind = (typeof LIST)[number]
+
+function args(kind: Kind, file: string, volume: number) {
+  if (kind === "ffplay") return [kind, "-autoexit", "-nodisp", "-af", `volume=${volume}`, file]
+  if (kind === "mpv")
+    return [kind, "--no-video", "--audio-display=no", "--volume", String(Math.round(volume * 100)), file]
+  if (kind === "mpg123" || kind === "mpg321") return [kind, "-g", String(Math.round(volume * 100)), file]
+  if (kind === "mplayer") return [kind, "-vo", "null", "-volume", String(Math.round(volume * 100)), file]
+  if (kind === "afplay" || kind === "omxplayer" || kind === "aplay" || kind === "cmdmp3") return [kind, file]
+  if (kind === "play") return [kind, "-v", String(volume), file]
+  if (kind === "cvlc") return [kind, `--gain=${volume}`, "--play-and-exit", file]
+  return [kind, "-c", `(New-Object Media.SoundPlayer '${file.replace(/'/g, "''")}').PlaySync()`]
+}
+
+export namespace Sound {
+  let item: Player | null | undefined
+  let kind: Kind | null | undefined
+  let proc: Process.Child | undefined
+  let tail: ReturnType<typeof setTimeout> | undefined
+  let cache: Promise<{ hum: string; pulse: string[] }> | undefined
+  let seq = 0
+  let shot = 0
+
+  function load() {
+    if (item !== undefined) return item
+    try {
+      item = new Player({ volume: 0.35 })
+    } catch {
+      item = null
+    }
+    return item
+  }
+
+  async function file(path: string) {
+    mkdirSync(DIR, { recursive: true })
+    const next = join(DIR, basename(path))
+    const out = Bun.file(next)
+    if (await out.exists()) return next
+    await Bun.write(out, Bun.file(path))
+    return next
+  }
+
+  function asset() {
+    cache ??= Promise.all([file(HUM), Promise.all(FILE.map(file))]).then(([hum, pulse]) => ({ hum, pulse }))
+    return cache
+  }
+
+  function pick() {
+    if (kind !== undefined) return kind
+    kind = LIST.find((item) => which(item)) ?? null
+    return kind
+  }
+
+  function run(file: string, volume: number) {
+    const kind = pick()
+    if (!kind) return
+    return Process.spawn(args(kind, file, volume), {
+      stdin: "ignore",
+      stdout: "ignore",
+      stderr: "ignore",
+    })
+  }
+
+  function clear() {
+    if (!tail) return
+    clearTimeout(tail)
+    tail = undefined
+  }
+
+  function play(file: string, volume: number) {
+    const item = load()
+    if (!item) return run(file, volume)?.exited
+    return item.play(file, { volume }).catch(() => run(file, volume)?.exited)
+  }
+
+  export function start() {
+    stop()
+    const id = ++seq
+    void asset().then(({ hum }) => {
+      if (id !== seq) return
+      const next = run(hum, 0.24)
+      if (!next) return
+      proc = next
+      void next.exited.then(
+        () => {
+          if (id !== seq) return
+          if (proc === next) proc = undefined
+        },
+        () => {
+          if (id !== seq) return
+          if (proc === next) proc = undefined
+        },
+      )
+    })
+  }
+
+  export function stop(delay = 0) {
+    seq++
+    clear()
+    if (!proc) return
+    const next = proc
+    if (delay <= 0) {
+      proc = undefined
+      void Process.stop(next).catch(() => undefined)
+      return
+    }
+    tail = setTimeout(() => {
+      tail = undefined
+      if (proc === next) proc = undefined
+      void Process.stop(next).catch(() => undefined)
+    }, delay)
+  }
+
+  export function pulse(scale = 1) {
+    stop(140)
+    const index = shot++ % FILE.length
+    void asset()
+      .then(({ pulse }) => play(pulse[index], 0.26 + 0.14 * scale))
+      .catch(() => undefined)
+  }
+
+  export function dispose() {
+    stop()
+  }
+}