diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..ddd8dc8
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,56 @@
+name: Desktop Build
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: windows-latest
+            artifact-name: windows-bundles
+          - platform: ubuntu-22.04
+            artifact-name: linux-bundles
+
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Tauri Linux dependencies
+        if: matrix.platform == 'ubuntu-22.04'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust
+        uses: swatinem/rust-cache@v2
+        with:
+          workspaces: ./src-tauri -> target
+
+      - name: Install frontend dependencies
+        run: npm ci
+
+      - name: Build Tauri bundles
+        run: npm run tauri:build
+
+      - name: Upload bundles
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.artifact-name }}
+          path: src-tauri/target/release/bundle/**/*
+          if-no-files-found: error
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..2270341
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,48 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+jobs:
+  quality:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Tauri Linux dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust
+        uses: swatinem/rust-cache@v2
+        with:
+          workspaces: ./src-tauri -> target
+
+      - name: Install frontend dependencies
+        run: npm ci
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Frontend tests
+        run: npm run test -- --run
+
+      - name: Frontend build
+        run: npm run build
+
+      - name: Rust tests
+        run: cargo test --manifest-path src-tauri/Cargo.toml
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..5d899af
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,66 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag de release, por exemplo v0.1.0'
+        required: true
+        type: string
+
+jobs:
+  release:
+    permissions:
+      contents: write
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: windows-latest
+            args: ''
+          - platform: ubuntu-22.04
+            args: ''
+
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Tauri Linux dependencies
+        if: matrix.platform == 'ubuntu-22.04'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust
+        uses: swatinem/rust-cache@v2
+        with:
+          workspaces: ./src-tauri -> target
+
+      - name: Install frontend dependencies
+        run: npm ci
+
+      - name: Publish Tauri release
+        uses: tauri-apps/tauri-action@v0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tagName: ${{ github.event.inputs.tag || github.ref_name }}
+          releaseName: Transcript ${{ github.event.inputs.tag || github.ref_name }}
+          releaseBody: 'Build automatizado do Transcript para Windows e Linux.'
+          releaseDraft: false
+          prerelease: false
+          args: ${{ matrix.args }}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..85c4a94
--- /dev/null
+++ b/README.md
@@ -0,0 +1,82 @@
+# Transcript Desktop
+
+Aplicativo desktop de transcrição para Windows e Linux, construído com Tauri + Rust + TypeScript. O objetivo é oferecer ditado/transcrição offline-first com revisão obrigatória em modal antes de inserir texto em outro aplicativo.
+
+## Estado atual
+
+Este repositório contém o MVP estrutural:
+
+- app Tauri 2 funcional;
+- modal editável em TypeScript sem framework pesado;
+- backend Rust modular;
+- catálogo do modelo `cstr/parakeet-tdt-0.6b-v3-GGUF` em Q8;
+- contratos para CrispASR sidecar, API OpenAI-compatible, gravação e inserção de texto;
+- tray/system tray básico;
+- CI, build e release via GitHub Actions.
+
+Ainda não implementa captura real de áudio, hotkey global, download real do modelo ou injeção nativa em outros aplicativos. Essas integrações já têm módulos dedicados para implementação incremental.
+
+## Arquitetura
+
+```text
+src/                  Frontend TypeScript/CSS
+src-tauri/src/
+  audio/              Estado de gravação MVP
+  transcription/      Contratos, CrispASR sidecar e API compatível com OpenAI
+  injection/          Contratos/fallback de inserção
+  models/             Catálogo do modelo offline
+  settings/           Configuração padrão
+  tray.rs             Menu da bandeja do sistema
+  ui_commands.rs      Comandos Tauri expostos ao frontend
+  app_state.rs        Estado compartilhado mínimo
+```
+
+A regra de design é manter arquivos pequenos, responsabilidades claras e zero overengineering. O app começa com contratos e stubs explícitos para as partes nativas mais arriscadas.
+
+## Modelo offline principal
+
+- Repositório: `cstr/parakeet-tdt-0.6b-v3-GGUF`
+- Arquivo: `parakeet-tdt-0.6b-v3-q8_0.gguf`
+- Quantização: `Q8_0`
+- Tamanho registrado no catálogo: `745121600` bytes
+- Modelo base: NVIDIA Parakeet TDT 0.6B v3
+- Idioma: detecção automática; português incluído no conjunto suportado pelo modelo base.
+
+O modelo não deve ser embutido no instalador principal. A estratégia recomendada é instalar o app leve e baixar o GGUF pelo gerenciador de modelos.
+
+## Compatibilidade Windows/Linux
+
+- Windows: alvo principal para inserção automática futura via APIs Win32.
+- Linux X11: alvo de automação completa quando possível.
+- Linux Wayland: suporte parcial por limitação de segurança dos compositors. O fallback seguro é copiar o texto e orientar o usuário a colar manualmente.
+
+## Comandos locais
+
+```bash
+npm install
+npm run typecheck
+npm run test -- --run
+npm run build
+cargo test --manifest-path src-tauri/Cargo.toml
+npm run tauri:build
+```
+
+## CI/CD
+
+Workflows:
+
+- `.github/workflows/ci.yml`: valida PRs e pushes em `main`.
+- `.github/workflows/build.yml`: gera bundles Windows/Linux em push para `main` e manualmente.
+- `.github/workflows/release.yml`: publica GitHub Releases em tags `v*.*.*`.
+
+A lógica fica em comandos npm/cargo para facilitar migração futura para GitLab CI.
+
+## Fontes técnicas usadas
+
+- Tauri 2 commands: https://v2.tauri.app/develop/calling-rust
+- Tauri 2 system tray: https://v2.tauri.app/learn/system-tray
+- Tauri 2 sidecars: https://v2.tauri.app/develop/sidecar
+- Tauri GitHub pipelines: https://v2.tauri.app/distribute/pipelines/github
+- Tauri Linux prerequisites: https://v2.tauri.app/start/prerequisites
+- NVIDIA Parakeet v3 model card: https://huggingface.co/nvidia/parakeet-tdt-0.6b-v3/blob/main/README.md
+- cstr Parakeet GGUF: https://huggingface.co/cstr/parakeet-tdt-0.6b-v3-GGUF
diff --git a/src-tauri/capabilities/default.json b/src-tauri/capabilities/default.json
index 41b8d61..82d3104 100644
--- a/src-tauri/capabilities/default.json
+++ b/src-tauri/capabilities/default.json
@@ -1,5 +1,4 @@
 {
-  "$schema": "../gen/schemas/desktop-schema.json",
   "identifier": "default",
   "description": "Permissões padrão do aplicativo Transcript.",
   "windows": ["main"],
diff --git a/src-tauri/src/app_state.rs b/src-tauri/src/app_state.rs
index 225b504..40ed996 100644
--- a/src-tauri/src/app_state.rs
+++ b/src-tauri/src/app_state.rs
@@ -74,8 +74,10 @@ mod tests {
     #[test]
     fn default_snapshot_starts_idle() {
         let state = ManagedAppState::default();
-        let snapshot = state.snapshot().expect("snapshot should work");
-
+        let snapshot = match state.snapshot() {
+            Ok(snapshot) => snapshot,
+            Err(error) => panic!("snapshot should work: {error}"),
+        };
         assert_eq!(snapshot.recording_status, RecordingStatus::Idle);
         assert!(snapshot.transcript.text.is_empty());
         assert_eq!(snapshot.models.len(), 1);
diff --git a/src-tauri/src/audio/mod.rs b/src-tauri/src/audio/mod.rs
index 31a5ac6..90fd48e 100644
--- a/src-tauri/src/audio/mod.rs
+++ b/src-tauri/src/audio/mod.rs
@@ -55,7 +55,7 @@ mod tests {
         let mut session = RecordingSession::default();
 
         assert_eq!(session.stop(), Err(AppError::NoActiveRecording));
-        session.start().expect("start should work");
+        assert_eq!(session.start(), Ok(()));
         assert_eq!(session.stop(), Ok(1));
     }
 }
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index eb07266..4c8ddf3 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -30,5 +30,8 @@ pub fn run() {
             ui_commands::save_settings
         ])
         .run(tauri::generate_context!())
-        .expect("erro ao executar o aplicativo Tauri");
+        .unwrap_or_else(|error| {
+            eprintln!("erro ao executar o aplicativo Tauri: {error}");
+            std::process::exit(1);
+        });
 }
diff --git a/vite.config.ts b/vite.config.ts
index 0cb5cd2..e624133 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,4 +1,4 @@
-import { defineConfig } from 'vite';
+import { defineConfig } from 'vitest/config';
 
 export default defineConfig({
   clearScreen: false,