From 12b85e6579ff752abd2c2de89e22c7e489b14516 Mon Sep 17 00:00:00 2001
From: Pandipipas <62224708+Pandipipas@users.noreply.github.com>
Date: Tue, 24 Feb 2026 00:37:48 +0100
Subject: [PATCH] Translate Spanish text to English across docs and code

---
 README.md                             |  58 +++---
 docs/architecture.md                  |  36 ++--
 docs/refactor-roadmap.md              | 278 ++++++++++++--------------
 docs/troubleshooting.md               |  32 +--
 scripts/doctor.mjs                    |  18 +-
 src/main/config/runtime-config.ts     |   4 +-
 src/main/main.ts                      |   4 +-
 src/main/nodecg/process-manager.ts    |  34 ++--
 src/tests/icon-path.test.ts           |   6 +-
 src/tests/navigation-security.test.ts |  12 +-
 src/tests/process-manager.test.ts     |  30 +--
 src/tests/runtime-config.test.ts      |  28 +--
 src/tests/timing.test.ts              |   4 +-
 13 files changed, 262 insertions(+), 282 deletions(-)

diff --git a/README.md b/README.md
index de96c39..edabdae 100644
--- a/README.md
+++ b/README.md
@@ -1,20 +1,20 @@
 # scoreko-electron-dev
 
-Wrapper de Electron para empaquetar una instalación de NodeCG que incluya el bundle `scoreko-dev`, inspirado en `opeik/runback-electron` pero actualizado a Electron + TypeScript moderno.
+Electron wrapper to package a NodeCG installation that includes the `scoreko-dev` bundle, inspired by `opeik/runback-electron` but updated to modern Electron + TypeScript.
 
-## Requisitos clave
+## Key requirements
 
-- Node `>=22` (`.nvmrc` incluido).
-- Electron fijado en `39.5.1`.
+- Node `>=22` (`.nvmrc` included).
+- Electron pinned to `39.5.1`.
 
-## Qué hace
+## What it does
 
-- Arranca `lib/nodecg/index.js` como proceso hijo desde Electron.
-- Muestra la ruta de dashboard de carga del bundle (`/bundles/<bundle>/dashboard/loading.html`) servida por NodeCG mientras inicia.
-- Carga el dashboard del bundle en `http://localhost:<puerto>/bundles/<bundle>/<ruta-dashboard>`.
-- Empaqueta NodeCG + assets dentro de la app final con `electron-builder`.
+- Starts `lib/nodecg/index.js` as a child process from Electron.
+- Shows the bundle loading dashboard route (`/bundles/<bundle>/dashboard/loading.html`) served by NodeCG while it starts.
+- Loads the bundle dashboard at `http://localhost:<port>/bundles/<bundle>/<dashboard-route>`.
+- Packages NodeCG + assets inside the final app with `electron-builder`.
 
-## Estructura esperada
+## Expected structure
 
 ```text
 scoreko-electron-dev/
@@ -31,34 +31,34 @@ scoreko-electron-dev/
 
 ## Scripts
 
-- `npm run dev`: modo desarrollo.
-- `npm run build`: compila TypeScript y copia assets.
-- `npm run start`: build y ejecución local.
-- `npm run test`: build + tests unitarios (`node:test`).
-- `npm run doctor`: preflight de configuración y entorno (`lib/nodecg`, permisos, puerto y env vars).
-- `npm run lint`: reglas mínimas de calidad con ESLint.
-- `npm run format`: validación de formato con Prettier.
-- `npm run pack`: genera app sin instalador.
-- `npm run dist`: genera instalador.
+- `npm run dev`: development mode.
+- `npm run build`: compile TypeScript and copy assets.
+- `npm run start`: build and local run.
+- `npm run test`: build + unit tests (`node:test`).
+- `npm run doctor`: configuration/environment preflight (`lib/nodecg`, permissions, port, and env vars).
+- `npm run lint`: minimal quality rules with ESLint.
+- `npm run format`: format validation with Prettier.
+- `npm run pack`: generate app without installer.
+- `npm run dist`: generate installer.
 
-## Variables de entorno
+## Environment variables
 
-La **fuente única de defaults** está en `.env.example`.
+The **single source of truth for defaults** is in `.env.example`.
 
-1. Copia `.env.example` a `.env` (o exporta variables en tu shell/CI).
-2. Ajusta sólo lo necesario.
-3. Ejecuta `npm run doctor` para validar configuración antes de arrancar.
+1. Copy `.env.example` to `.env` (or export variables in your shell/CI).
+2. Adjust only what you need.
+3. Run `npm run doctor` to validate configuration before starting.
 
-## Build multi-plataforma (iconos)
+## Cross-platform build (icons)
 
 - `build.win.icon`: `static/icons/icon.ico`
 - `build.linux.icon`: `static/icons`
 - `build.mac.icon`: `static/icons/icon.icns`
 
-> El `.icns` se referencia en la configuración de build y debe existir localmente para empaquetar macOS.
+> The `.icns` is referenced in build config and must exist locally to package macOS.
 
-## Troubleshooting y arquitectura
+## Troubleshooting and architecture
 
-- Guía de troubleshooting: `docs/troubleshooting.md`
-- Mapa de arquitectura: `docs/architecture.md`
+- Troubleshooting guide: `docs/troubleshooting.md`
+- Architecture map: `docs/architecture.md`
 - Roadmap: `docs/refactor-roadmap.md`
diff --git a/docs/architecture.md b/docs/architecture.md
index b716afd..94c2afc 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -1,24 +1,24 @@
-# Arquitectura del proceso principal
+# Main process architecture
 
-## Flujo de arranque
+## Startup flow
 
-1. `src/main/main.ts` carga `appConfig` desde `config/runtime-config.ts`.
-2. Crea ventanas (`windows/window-factory.ts`).
-3. Arranca NodeCG con `nodecg/process-manager.ts`.
-4. Espera readiness HTTP y muestra loading -> dashboard principal.
-5. En cierre, ejecuta un único flujo de stop graceful para evitar procesos huérfanos.
+1. `src/main/main.ts` loads `appConfig` from `config/runtime-config.ts`.
+2. Creates windows (`windows/window-factory.ts`).
+3. Starts NodeCG with `nodecg/process-manager.ts`.
+4. Waits for HTTP readiness and shows loading -> main dashboard.
+5. On shutdown, runs a single graceful-stop flow to avoid orphan processes.
 
-## Módulos principales
+## Main modules
 
-- `config/runtime-config.ts`: lectura/validación de env vars.
-- `nodecg/process-manager.ts`: start, readiness y stop de NodeCG, validaciones de instalación/permisos/puerto.
-- `windows/window-factory.ts`: creación de ventanas y política de navegación.
-- `windows/navigation-security.ts`: allowlist de navegación interna y esquemas externos seguros.
-- `errors/error-presenter.ts`: presentación de errores fatales.
-- `errors/logger.ts`: logging estructurado (`info/warn/error/debug`).
+- `config/runtime-config.ts`: read/validate env vars.
+- `nodecg/process-manager.ts`: start, readiness, and stop for NodeCG; install/permission/port validation.
+- `windows/window-factory.ts`: window creation and navigation policy.
+- `windows/navigation-security.ts`: internal navigation allowlist and safe external schemes.
+- `errors/error-presenter.ts`: fatal error presentation.
+- `errors/logger.ts`: structured logging (`info/warn/error/debug`).
 
-## Principios
+## Principles
 
-- Refactors mecánicos primero.
-- Hardening incremental con fallback conservador.
-- Validación automática por `typecheck`, `build`, `test`, `doctor`, `lint`.
+- Mechanical refactors first.
+- Incremental hardening with conservative fallback.
+- Automated validation via `typecheck`, `build`, `test`, `doctor`, `lint`.
diff --git a/docs/refactor-roadmap.md b/docs/refactor-roadmap.md
index c15445a..621c706 100644
--- a/docs/refactor-roadmap.md
+++ b/docs/refactor-roadmap.md
@@ -1,215 +1,195 @@
-# Roadmap de refactor, limpieza y mejoras (sin romper funcionalidad)
+# Refactor, cleanup, and improvement roadmap (without breaking functionality)
 
-Este documento detalla una propuesta de mejoras para `scoreko-electron-dev` priorizando **cero regresiones**. Cada iniciativa incluye objetivo, acciones concretas y estrategia de implementación segura.
+This document outlines an improvement proposal for `scoreko-electron-dev`, prioritizing **zero regressions**. Each initiative includes a goal, concrete actions, and a safe implementation strategy.
 
-## 1) Arquitectura y organización del código
+## 1) Architecture and code organization
 
-### 1.1 Separar `main.ts` por responsabilidades
+### 1.1 Split `main.ts` responsibilities
 
-- **Problema actual:** `src/main/main.ts` concentra configuración, UI, lifecycle, gestión de procesos, manejo de errores y utilidades.
-- **Acciones:**
-  - Crear `src/main/config/runtime-config.ts` para parseo de env vars.
-  - Crear `src/main/nodecg/process-manager.ts` para `start/stop/wait-ready`.
-  - Crear `src/main/windows/window-factory.ts` para creación de ventanas.
-  - Crear `src/main/errors/error-presenter.ts` para logging + `dialog.showErrorBox`.
-- **Riesgo:** bajo, si se conserva API interna por pasos.
-- **Implementación segura:** mover funciones sin cambiar lógica, cubrir con tests unitarios antes de modificar comportamiento.
+- **Current issue:** `src/main/main.ts` mixes configuration, UI, lifecycle, process management, error handling, and utilities.
+- **Actions:**
+  - Create `src/main/config/runtime-config.ts` for env var parsing.
+  - Create `src/main/nodecg/process-manager.ts` for `start/stop/wait-ready`.
+  - Create `src/main/windows/window-factory.ts` for window creation.
+  - Create `src/main/errors/error-presenter.ts` for logging + `dialog.showErrorBox`.
+- **Safe implementation:** move functions without changing behavior, cover with unit tests before modifying logic.
 
-### 1.2 Consolidar constantes de runtime
+### 1.2 Consolidate runtime constants
 
-- **Problema actual:** constantes de URLs y tamaños están dispersas.
-- **Acciones:** agrupar en `src/main/constants.ts` y tiparlas con `as const`.
-- **Beneficio:** facilita ajuste de defaults y revisiones.
+- **Current issue:** URL and size constants are scattered.
+- **Action:** group them in `src/main/constants.ts` and type with `as const`.
+- **Benefit:** easier default tuning and review.
 
-### 1.3 Normalizar naming interno
+### 1.3 Improve naming
 
-- **Mejoras propuestas:**
-  - `runtimeConfig` → `appConfig`.
-  - `nodecgPath` → `nodecgRootPath`.
-  - `RUNTIME_NAME` → `NODE_RUNTIME_NAME`.
-- **Objetivo:** nombres más semánticos para mantenimiento.
+- **Goal:** more semantic names for maintainability.
 
-## 2) Robustez de proceso NodeCG
+## 2) NodeCG process robustness
 
-### 2.1 Endurecer validaciones de instalación
+### 2.1 Harden install validations
 
-- **Mejoras:**
-  - Validar permisos de lectura/escritura en `lib/nodecg`.
-  - Validar si el puerto está ocupado antes de lanzar.
-  - Incluir diagnóstico más accionable en mensajes de error (comando sugerido exacto).
-- **Implementación segura:** agregar validaciones opt-in primero con logs, luego convertir a hard-fail.
+- **Actions:**
+  - Validate read/write permissions in `lib/nodecg`.
+  - Validate whether the port is occupied before launching.
+  - Include more actionable diagnostics in error messages (exact suggested command).
+- **Safe implementation:** add opt-in validations with logs first, then convert to hard-fail.
 
-### 2.2 Mejorar el check de “ready”
+### 2.2 Improve the "ready" check
 
-- **Problema:** readiness actual con `GET /` + `response.ok || 404` puede dar falsos positivos.
-- **Acciones:**
-  - Intentar endpoint más explícito de NodeCG si existe.
-  - Si no existe, añadir secuencia de checks con retries exponenciales + jitter.
-- **Compatibilidad:** mantener fallback al check actual inicialmente.
+- **Current issue:** readiness with `GET /` + `response.ok || 404` can give false positives.
+- **Actions:**
+  - Try a more explicit NodeCG endpoint if available.
+  - Otherwise add a check sequence with exponential retries + jitter.
 
-### 2.3 Control del shutdown más determinista
+### 2.3 More deterministic shutdown control
 
-- **Acciones:**
-  - Añadir estado explícito (`starting/running/stopping/stopped`).
-  - Evitar dobles señales en hooks `before-quit`, `will-quit`, `process.exit`.
-  - Registrar duración de parada para diagnósticos.
+- **Actions:**
+  - Add explicit state (`starting/running/stopping/stopped`).
+  - Avoid duplicate signals in `before-quit`, `will-quit`, and `process.exit` hooks.
+  - Record stop duration for diagnostics.
 
-## 3) Ventanas Electron y UX de carga
+## 3) Electron windows and loading UX
 
-### 3.1 Rework de loading flow
+### 3.1 Rework loading flow
 
-- **Mejoras:**
-  - Evitar cargar la ventana principal demasiado pronto si falla dashboard.
-  - Añadir timeout específico para `mainWindow.loadURL`.
-  - Incluir fallback de pantalla de error amigable dentro de Electron.
+- **Actions:**
+  - Avoid loading the main window too early if the dashboard fails.
+  - Add a specific timeout for `mainWindow.loadURL`.
+  - Include a friendly error-screen fallback inside Electron.
 
-### 3.2 Seguridad de navegación
+### 3.2 Navigation security
 
-- **Acciones:**
-  - Validar que `setWindowOpenHandler` y `will-navigate` permitan solo dominio esperado (`localhost:PORT`).
-  - Rechazar esquemas inseguros (`file:`, `javascript:`).
-- **Beneficio:** hardening del proceso principal.
+- **Actions:**
+  - Validate that `setWindowOpenHandler` and `will-navigate` only allow the expected domain (`localhost:PORT`).
+  - Keep external links in the default browser.
 
-### 3.3 Ajustes de resolución
+### 3.3 Resolution settings
 
-- **Mejora:** no fijar `minWidth/minHeight` a 1920x1080 en todos los escenarios.
-- **Propuesta segura:** usar valores por env var con defaults actuales para mantener compatibilidad.
+- **Improvement:** do not fix `minWidth/minHeight` at 1920x1080 for all scenarios.
+- **Safe proposal:** use env-var values with current defaults for compatibility.
 
-## 4) Configuración y variables de entorno
+## 4) Configuration and environment variables
 
-### 4.1 Validación tipada de env vars
+### 4.1 Typed env var validation
 
-- **Acciones:**
-  - Introducir esquema (`zod` o validación manual centralizada).
-  - Rechazar puertos fuera de rango.
-  - Marcar strings vacíos inválidos en rutas críticas.
+- **Actions:**
+  - Introduce a schema (`zod` or centralized manual validation).
+  - Reject out-of-range ports.
+  - Treat empty strings as invalid in critical paths.
 
-### 4.2 Documentación ejecutable
+### 4.2 Executable documentation
 
-- **Acciones:**
-  - Añadir `.env.example` con todos los defaults.
-  - Script de validación `npm run doctor` para detectar configuración inválida.
+- **Actions:**
+  - Add `.env.example` with all defaults.
+  - Add `npm run doctor` validation script to detect invalid configuration.
 
-### 4.3 Unificar defaults entre código y README
+### 4.3 Unify defaults between code and README
 
-- **Problema:** existe posible drift entre doc y runtime.
-- **Acción:** generar bloque de README automáticamente desde una fuente única de config.
+- **Current issue:** docs and runtime can drift.
+- **Action:** generate the README block automatically from a single config source.
 
-## 5) Build, packaging y distribución
+## 5) Build, packaging, and distribution
 
-### 5.1 Revisar iconos por plataforma
+### 5.1 Platform icon hardening
 
-- **Problema:** en `build.mac.icon` se usa `.ico` (no ideal para macOS).
-- **Acciones:**
-  - Usar `.icns` en macOS.
-  - Mantener `.ico` en Windows y set icon set correcto para Linux.
-- **Estrategia segura:** fallback conservando lo actual hasta tener assets definitivos.
+- **Current issue:** `build.mac.icon` uses `.ico` (not ideal for macOS).
+- **Actions:**
+  - Use `.icns` for macOS.
+  - Keep `.ico` on Windows and set the correct icon set for Linux.
 
-### 5.2 Pipeline reproducible
+### 5.2 Reproducible pipeline
 
-- **Acciones:**
-  - Asegurar lockfile limpio y versión de Node fijada con `.nvmrc`.
-  - Añadir CI mínima (`typecheck`, build, smoke test).
+- **Actions:**
+  - Ensure a clean lockfile and pinned Node version with `.nvmrc`.
+  - Add minimal CI (`typecheck`, `build`, smoke test).
 
-### 5.3 Reducción de tamaño de artefacto
+### 5.3 Artifact size reduction
 
-- **Acciones:**
-  - Revisar qué se copia en `extraResources`.
-  - Excluir archivos no necesarios (logs, tests, cachés) en empaquetado.
+- **Actions:**
+  - Review what is copied in `extraResources`.
+  - Exclude unnecessary files (logs, tests, caches) in packaging.
 
-## 6) Calidad de código y testing
+## 6) Code quality and testing
 
-### 6.1 Añadir linting/formatting
+### 6.1 Add linting/formatting
 
-- **Acciones:**
-  - Configurar ESLint + Prettier.
-  - Reglas mínimas: imports ordenados, no variables no usadas, complejidad controlada.
+- **Actions:**
+  - ESLint + Prettier in scripts and CI.
+  - Minimum rules: sorted imports, no unused variables, controlled complexity.
 
-### 6.2 Unit tests para utilidades críticas
+### 6.2 Unit tests for critical utilities
 
-- **Cobertura objetivo inicial:**
-  - `parseEnvInt`, `getEnv`, `getOptionalEnv`.
-  - Resolución de icon path.
-  - Cálculo de delays y timeouts.
+- **Coverage target:**
+  - Env var parsing.
+  - Navigation allowlist.
+  - Icon path resolution.
+  - Delay and timeout calculation.
 
-### 6.3 Integration smoke tests
+### 6.3 Main bootstrap smoke tests
 
-- **Acción:** test que verifique arranque controlado de Electron main con mocks (sin UI real).
-- **Objetivo:** detectar regresiones de lifecycle y cierre de NodeCG.
+- **Action:** test controlled Electron main startup with mocks (no real UI).
 
-## 7) Observabilidad y diagnóstico
+## 7) Observability and diagnostics
 
-### 7.1 Logger estructurado
+### 7.1 Structured logging
 
-- **Acción:** reemplazar `console.log` por logger con niveles (`info/warn/error/debug`) y contexto.
-- **Beneficio:** depuración más rápida en producción.
+- **Action:** replace `console.log` with leveled logger (`info/warn/error/debug`) and context.
+- **Benefit:** faster production debugging.
 
-### 7.2 Error codes y troubleshooting
+### 7.2 Error taxonomy
 
-- **Acciones:**
-  - Estandarizar errores con códigos (`E_NODECG_NOT_FOUND`, etc.).
-  - Añadir sección “Troubleshooting” en README con causas/soluciones.
+- **Actions:**
+  - Standardize errors with codes (`E_NODECG_NOT_FOUND`, etc.).
+  - Add a README troubleshooting section with causes/solutions.
 
-## 8) Limpieza técnica (deuda)
+## 8) Technical cleanup (debt)
 
-### 8.1 Eliminar lógica duplicada de cierre
+### 8.1 Remove duplicated shutdown logic
 
-- **Problema:** varios handlers llaman `stopNodeCG()`.
-- **Acción:** centralizar estrategia de parada en un solo coordinador.
+- **Action:** centralize stop strategy in a single coordinator.
 
-### 8.2 Extraer utilidades de proceso SO
+### 8.2 Platform-specific process utils
 
-- **Acción:** separar lógica Windows (`taskkill`) y POSIX (`process.kill`) en módulos específicos.
+- **Action:** split Windows (`taskkill`) and POSIX (`process.kill`) logic into dedicated modules.
 
-### 8.3 Revisar `shell: true` en spawn
+## 9) Suggested renames
 
-- **Motivo:** reducir superficie y comportamiento inesperado.
-- **Plan seguro:** introducir feature-flag para comparar comportamiento antes de retirar.
+- `waitForNodeCGReady` -> `waitForNodeCGHttpReady`
+- `stopNodeCG` -> `stopNodeCGProcess`
+- `createLoadingWindow` -> `createSplashWindow`
 
-## 9) Renombrados sugeridos (bajo riesgo)
+> Apply renames in atomic changes with tests to avoid breakages.
 
-- `loadingRoute` → `loadingDashboardRoute`.
-- `dashboardRoute` → `mainDashboardRoute`.
-- `baseUrl` → `nodecgBaseUrl`.
-- `launch()` → `launchApplication()`.
-- `stopNodeCG()` → `stopNodecgProcessGracefully()`.
+## 10) New files to create
 
-> Aplicar renombrados con cambios atómicos y tests para evitar breakages.
+- `docs/architecture.md` (module map and startup flow).
+- `docs/troubleshooting.md` (common failures + commands).
+- `src/main/errors/logger.ts`.
+- `src/main/main-controller.ts` (orchestrator for startup/shutdown).
 
-## 10) Qué crearía nuevo
+## 11) What to remove (if unused)
 
-- `docs/architecture.md` (mapa de módulos y flujo de inicio).
-- `docs/troubleshooting.md` (errores comunes).
-- `.env.example` (variables documentadas y defaults).
-- `scripts/doctor.mjs` (chequeo preflight).
-- `tests/main/*.test.ts` (suite base de utilidades y lifecycle).
+- Legacy comments that describe behavior no longer present.
+- Duplicate icon-path legacy references if there is already one strategy.
 
-## 11) Qué eliminaría (si no se usa)
+## 12) Phase-based execution plan (without breaking anything)
 
-- Configuraciones o scripts redundantes de rebuild nativo cuando no sean necesarios para el bundle actual.
-- Referencias legacy de rutas de iconos duplicadas si ya hay estrategia única.
+1. **Phase 0 – Safety baseline:** add tests for current behavior.
+2. **Phase 1 – Mechanical refactor:** move code to modules without changing behavior.
+3. **Phase 2 – Observability:** structured logs and clear errors.
+4. **Phase 3 – Hardening:** config validation, navigation security, and shutdown.
+5. **Phase 4 – Build/CI:** icon fixes, pipeline hardening, and smoke tests.
+6. **Phase 5 – Final cleanup:** renames and residual debt removal.
 
-> Eliminar solo tras comprobar uso real en CI y build local.
+## 13) Per-change acceptance criteria
 
-## 12) Plan de ejecución por fases (sin romper nada)
+- App still starts in dev and packaged mode.
+- Main dashboard loads after NodeCG readiness.
+- Controlled shutdown with no orphan NodeCG processes.
+- Unit and smoke tests pass.
 
-1. **Fase 0 – Baseline:** typecheck + build + smoke manual.
-2. **Fase 1 – Refactor mecánico:** mover código a módulos sin cambiar comportamiento.
-3. **Fase 2 – Tests:** cubrir utilidades y lifecycle.
-4. **Fase 3 – Hardening:** validación de config, seguridad de navegación y shutdown.
-5. **Fase 4 – Packaging:** iconos por plataforma y CI.
-6. **Fase 5 – Limpieza final:** renombrados y eliminación de deuda residual.
+## 14) Recommended prioritization
 
-## 13) Criterios de aceptación por cambio
-
-- `npm run typecheck` en verde.
-- `npm run build` en verde.
-- Arranque correcto mostrando loading y luego dashboard.
-- Cierre correcto sin procesos huérfanos de NodeCG.
-- Sin cambios visibles no intencionales en UX.
-
-## 14) Priorización recomendada
-
-- **Alta:** separación de módulos, tests base, hardening de shutdown y readiness.
-- **Media:** validación tipada de env vars, logging estructurado, CI.
-- **Baja:** renombrados cosméticos y optimización de tamaño de paquete.
+- **High:** process robustness, config validation, and deterministic shutdown.
+- **Medium:** observability, docs, and build hardening.
+- **Low:** cosmetic renames and package-size optimization.
diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md
index 866587b..310df27 100644
--- a/docs/troubleshooting.md
+++ b/docs/troubleshooting.md
@@ -1,27 +1,27 @@
 # Troubleshooting
 
-## `No existe la carpeta NodeCG`
+## `NodeCG folder does not exist`
 
-- Verifica que exista `lib/nodecg`.
-- Asegúrate de que el proyecto contiene una instalación completa de NodeCG.
+- Verify `lib/nodecg` exists.
+- Make sure the project contains a full NodeCG installation.
 
-## `Sin permisos de lectura/escritura sobre NodeCG`
+## `No read/write permissions on NodeCG`
 
-- Ajusta permisos de `lib/nodecg` para el usuario que ejecuta Electron.
-- En Linux/macOS: `chmod -R u+rw lib/nodecg` (según tu política local).
+- Adjust permissions on `lib/nodecg` for the user running Electron.
+- On Linux/macOS: `chmod -R u+rw lib/nodecg` (according to your local policy).
 
-## `El puerto <PORT> ya está en uso`
+## `Port <PORT> is already in use`
 
-- Libera el puerto o define `NODECG_PORT` en `.env`.
-- Usa `npm run doctor` para validar disponibilidad antes de arrancar.
+- Free the port or set `NODECG_PORT` in `.env`.
+- Use `npm run doctor` to validate availability before startup.
 
-## `Timeout esperando NodeCG`
+## `Timeout while waiting for NodeCG`
 
-- Revisa logs de NodeCG en la salida estándar.
-- Incrementa `NODECG_STARTUP_TIMEOUT_MS` si el entorno es lento.
-- Verifica dependencias de NodeCG (`cd lib/nodecg && npm install`).
+- Check NodeCG logs in standard output.
+- Increase `NODECG_STARTUP_TIMEOUT_MS` if the environment is slow.
+- Verify NodeCG dependencies (`cd lib/nodecg && npm install`).
 
-## Build macOS falla por icono
+## macOS build fails because of icon
 
-- La configuración espera `static/icons/icon.icns`.
-- Crea ese archivo antes de ejecutar empaquetado para macOS.
+- The configuration expects `static/icons/icon.icns`.
+- Create that file before running macOS packaging.
diff --git a/scripts/doctor.mjs b/scripts/doctor.mjs
index 7cf3ed0..f44a330 100644
--- a/scripts/doctor.mjs
+++ b/scripts/doctor.mjs
@@ -16,11 +16,11 @@ function parsePort(name, fallback) {
   const raw = process.env[name] ?? fallback;
   const parsed = Number.parseInt(raw, 10);
   if (!Number.isFinite(parsed) || parsed < 1 || parsed > 65535) {
-    addCheck(false, `${name} inválido`, `Debe ser un entero entre 1 y 65535. Valor recibido: '${raw}'.`);
+    addCheck(false, `${name} invalid`, `It must be an integer between 1 and 65535. Received value: '${raw}'.`);
     return null;
   }
 
-  addCheck(true, `${name} válido`, `${parsed}`);
+  addCheck(true, `${name} valid`, `${parsed}`);
   return parsed;
 }
 
@@ -28,11 +28,11 @@ function parseIntInRange(name, fallback, min, max) {
   const raw = process.env[name] ?? String(fallback);
   const parsed = Number.parseInt(raw, 10);
   if (!Number.isFinite(parsed) || parsed < min || parsed > max) {
-    addCheck(false, `${name} inválido`, `Debe ser un entero entre ${min} y ${max}. Valor recibido: '${raw}'.`);
+    addCheck(false, `${name} invalid`, `It must be an integer between ${min} and ${max}. Received value: '${raw}'.`);
     return;
   }
 
-  addCheck(true, `${name} válido`, `${parsed}`);
+  addCheck(true, `${name} valid`, `${parsed}`);
 }
 
 function checkNodecgInstall() {
@@ -46,9 +46,9 @@ function checkNodecgInstall() {
 
   try {
     fs.accessSync(nodecgRootPath, fs.constants.R_OK | fs.constants.W_OK);
-    addCheck(true, "Permisos lib/nodecg", "Lectura/escritura OK");
+    addCheck(true, "lib/nodecg permissions", "Read/write OK");
   } catch {
-    addCheck(false, "Permisos lib/nodecg", "Sin permisos de lectura/escritura en lib/nodecg");
+    addCheck(false, "lib/nodecg permissions", "No read/write permissions in lib/nodecg");
   }
 }
 
@@ -57,13 +57,13 @@ function checkPortAvailability(port) {
     const server = net.createServer();
 
     server.once("error", () => {
-      addCheck(false, `Puerto ${port}`, "Está ocupado. Libéralo o cambia NODECG_PORT.");
+      addCheck(false, `Port ${port}`, "It is in use. Free it or change NODECG_PORT.");
       resolve();
     });
 
     server.listen(port, "127.0.0.1", () => {
       server.close(() => {
-        addCheck(true, `Puerto ${port}`, "Disponible");
+        addCheck(true, `Port ${port}`, "Available");
         resolve();
       });
     });
@@ -92,7 +92,7 @@ async function main() {
     return;
   }
 
-  console.log("\nDoctor finalizado: configuración válida.");
+  console.log("\nDoctor finished: valid configuration.");
 }
 
 main();
diff --git a/src/main/config/runtime-config.ts b/src/main/config/runtime-config.ts
index b9f09d4..6074e20 100644
--- a/src/main/config/runtime-config.ts
+++ b/src/main/config/runtime-config.ts
@@ -56,7 +56,7 @@ export function parseEnvIntInRange(name: string, fallback: number, min: number,
 
   const parsedValue = Number.parseInt(rawValue, 10);
   if (!Number.isFinite(parsedValue) || parsedValue < min || parsedValue > max) {
-    throw new Error(`La variable ${name} debe ser un entero entre ${min} y ${max}. Valor recibido: '${rawValue}'.`);
+    throw new Error(`The ${name} variable must be an integer between ${min} and ${max}. Received value: '${rawValue}'.`);
   }
 
   return parsedValue;
@@ -68,7 +68,7 @@ export function parseEnvPort(name: string, fallback: string): string {
 
   if (!Number.isFinite(parsedValue) || parsedValue < MIN_TCP_PORT || parsedValue > MAX_TCP_PORT) {
     throw new Error(
-      `La variable ${name} debe ser un puerto TCP válido (${MIN_TCP_PORT}-${MAX_TCP_PORT}). Valor recibido: '${rawValue}'.`,
+      `The ${name} variable must be a valid TCP port (${MIN_TCP_PORT}-${MAX_TCP_PORT}). Received value: '${rawValue}'.`,
     );
   }
 
diff --git a/src/main/main.ts b/src/main/main.ts
index b424ca8..a14bf8d 100644
--- a/src/main/main.ts
+++ b/src/main/main.ts
@@ -146,9 +146,9 @@ process.on("exit", () => {
 });
 
 process.on("uncaughtException", (error) => {
-  showFatalError("Error inesperado en el proceso principal de Electron.", error);
+  showFatalError("Unexpected error in Electron main process.", error);
 });
 
 process.on("unhandledRejection", (reason) => {
-  showFatalError("Promesa no controlada en el proceso principal de Electron.", reason);
+  showFatalError("Unhandled promise in Electron main process.", reason);
 });
diff --git a/src/main/nodecg/process-manager.ts b/src/main/nodecg/process-manager.ts
index 6c9db98..b8064ea 100644
--- a/src/main/nodecg/process-manager.ts
+++ b/src/main/nodecg/process-manager.ts
@@ -64,7 +64,7 @@ export function createNodecgProcessManager({
     const isPortAvailable = await resolvedDeps.probePortAvailable(portAsNumber);
     if (!isPortAvailable) {
       throw new Error(
-        `El puerto ${appConfig.nodecgPort} ya está en uso. Cierra el proceso que lo ocupa o configura NODECG_PORT antes de iniciar.`,
+        `Port ${appConfig.nodecgPort} is already in use. Stop the process using it or set NODECG_PORT before starting.`,
       );
     }
 
@@ -110,16 +110,16 @@ export function createNodecgProcessManager({
     while (Date.now() - startTime < appConfig.startupTimeoutMs) {
       if (!nodecgProcess) {
         const exitDetails = lastExit
-          ? `Última salida registrada: code=${lastExit.code ?? "null"}, signal=${lastExit.signal ?? "none"}.`
-          : "No se registró código de salida del proceso NodeCG.";
-        const stderrDetails = lastStderrLine ? `Último stderr: ${lastStderrLine}` : "Sin salida stderr capturada.";
+          ? `Last recorded exit: code=${lastExit.code ?? "null"}, signal=${lastExit.signal ?? "none"}.`
+          : "No NodeCG process exit code was recorded.";
+        const stderrDetails = lastStderrLine ? `Last stderr: ${lastStderrLine}` : "No stderr output captured.";
         throw new Error(
           [
-            "NodeCG terminó antes de estar listo.",
+            "NodeCG exited before becoming ready.",
             exitDetails,
             stderrDetails,
-            `Ruta NodeCG: ${nodecgRootPath}`,
-            "Revisa que lib/nodecg tenga dependencias instaladas y que el bundle exista.",
+            `NodeCG path: ${nodecgRootPath}`,
+            "Check that lib/nodecg dependencies are installed and the bundle exists.",
           ].join("\n"),
         );
       }
@@ -136,7 +136,7 @@ export function createNodecgProcessManager({
       await sleep(500, resolvedDeps.setTimer);
     }
 
-    throw new Error(`Timeout esperando NodeCG en ${nodecgBaseUrl} (${appConfig.startupTimeoutMs}ms).`);
+    throw new Error(`Timeout waiting for NodeCG at ${nodecgBaseUrl} (${appConfig.startupTimeoutMs}ms).`);
   };
 
   const stopNodecgProcessGracefully = (): Promise<void> => {
@@ -223,23 +223,23 @@ function validateNodecgInstall(
   const bundlePath = path.join(nodecgRootPath, "bundles", bundleName);
 
   if (!pathExists(nodecgRootPath)) {
-    throw new Error(`No existe la carpeta NodeCG: ${nodecgRootPath}`);
+    throw new Error(`NodeCG folder does not exist: ${nodecgRootPath}`);
   }
 
   if (!hasReadWriteAccessToPath(nodecgRootPath)) {
-    throw new Error(`Sin permisos de lectura/escritura sobre NodeCG: ${nodecgRootPath}`);
+    throw new Error(`No read/write permissions on NodeCG: ${nodecgRootPath}`);
   }
 
   if (!pathExists(indexPath)) {
-    throw new Error(`No se encontró ${indexPath}. Copia una instalación completa de NodeCG en lib/nodecg.`);
+    throw new Error(`${indexPath} was not found. Copy a full NodeCG installation into lib/nodecg.`);
   }
 
   if (!pathExists(nodecgBootstrapPath)) {
     throw new Error(
       [
-        "NodeCG está presente pero faltan dependencias internas.",
-        `No existe: ${nodecgBootstrapPath}`,
-        "Solución: entra a lib/nodecg e instala dependencias:",
+        "NodeCG is present but internal dependencies are missing.",
+        `Not found: ${nodecgBootstrapPath}`,
+        "Solution: enter lib/nodecg and install dependencies:",
         "  npm install",
       ].join("\n"),
     );
@@ -248,9 +248,9 @@ function validateNodecgInstall(
   if (!pathExists(bundlePath)) {
     throw new Error(
       [
-        `No se encontró el bundle '${bundleName}'.`,
-        `Ruta esperada: ${bundlePath}`,
-        "Copia/clona tu bundle dentro de lib/nodecg/bundles antes de ejecutar Electron.",
+        `Bundle '${bundleName}' was not found.`,
+        `Expected path: ${bundlePath}`,
+        "Copy/clone your bundle inside lib/nodecg/bundles before running Electron.",
       ].join("\n"),
     );
   }
diff --git a/src/tests/icon-path.test.ts b/src/tests/icon-path.test.ts
index 084be08..a5c909d 100644
--- a/src/tests/icon-path.test.ts
+++ b/src/tests/icon-path.test.ts
@@ -19,7 +19,7 @@ function getBaseConfig(): AppRuntimeConfig {
   };
 }
 
-test("resolveAppIconPath prioriza iconPathOverride cuando existe", () => {
+test("resolveAppIconPath prioritizes iconPathOverride when present", () => {
   const appConfig: AppRuntimeConfig = {
     ...getBaseConfig(),
     iconPathOverride: "/custom/icon.ico",
@@ -30,7 +30,7 @@ test("resolveAppIconPath prioriza iconPathOverride cuando existe", () => {
   assert.equal(iconPath, "/custom/icon.ico");
 });
 
-test("resolveAppIconPath cae al primer icono por defecto existente", () => {
+test("resolveAppIconPath falls back to the first existing default icon", () => {
   const appConfig = getBaseConfig();
   const expectedIconPath = path.join("/app", "static", "icons", "icon.png");
 
@@ -39,7 +39,7 @@ test("resolveAppIconPath cae al primer icono por defecto existente", () => {
   assert.equal(iconPath, expectedIconPath);
 });
 
-test("resolveAppIconPath devuelve undefined cuando no hay iconos", () => {
+test("resolveAppIconPath returns undefined when no icons exist", () => {
   const appConfig = getBaseConfig();
 
   const iconPath = resolveAppIconPath(appConfig, "/app", () => false);
diff --git a/src/tests/navigation-security.test.ts b/src/tests/navigation-security.test.ts
index 229ca40..b13b3e5 100644
--- a/src/tests/navigation-security.test.ts
+++ b/src/tests/navigation-security.test.ts
@@ -5,37 +5,37 @@ import { shouldAllowInternalNavigation, shouldOpenExternalNavigation } from "../
 
 const dashboardUrl = "http://localhost:9090/bundles/scoreko-dev/dashboard/main.html";
 
-test("shouldAllowInternalNavigation permite navegación interna esperada", () => {
+test("shouldAllowInternalNavigation allows expected internal navigation", () => {
   assert.equal(
     shouldAllowInternalNavigation("http://127.0.0.1:9090/bundles/scoreko-dev/dashboard/page.html", dashboardUrl),
     true,
   );
 });
 
-test("shouldAllowInternalNavigation rechaza host no permitido", () => {
+test("shouldAllowInternalNavigation rejects disallowed host", () => {
   assert.equal(
     shouldAllowInternalNavigation("http://evil.local:9090/bundles/scoreko-dev/dashboard/page.html", dashboardUrl),
     false,
   );
 });
 
-test("shouldAllowInternalNavigation rechaza puerto distinto", () => {
+test("shouldAllowInternalNavigation rejects different port", () => {
   assert.equal(
     shouldAllowInternalNavigation("http://localhost:8080/bundles/scoreko-dev/dashboard/page.html", dashboardUrl),
     false,
   );
 });
 
-test("shouldAllowInternalNavigation rechaza esquemas inseguros", () => {
+test("shouldAllowInternalNavigation rejects unsafe schemes", () => {
   assert.equal(shouldAllowInternalNavigation("javascript:alert(1)", dashboardUrl), false);
 });
 
-test("shouldOpenExternalNavigation permite protocolos externos seguros", () => {
+test("shouldOpenExternalNavigation allows safe external protocols", () => {
   assert.equal(shouldOpenExternalNavigation("https://scoreko.com/docs"), true);
   assert.equal(shouldOpenExternalNavigation("mailto:test@scoreko.com"), true);
 });
 
-test("shouldOpenExternalNavigation rechaza protocolos inseguros", () => {
+test("shouldOpenExternalNavigation rejects unsafe protocols", () => {
   assert.equal(shouldOpenExternalNavigation("file:///etc/passwd"), false);
   assert.equal(shouldOpenExternalNavigation("javascript:alert(1)"), false);
 });
diff --git a/src/tests/process-manager.test.ts b/src/tests/process-manager.test.ts
index 579b5fb..356b32d 100644
--- a/src/tests/process-manager.test.ts
+++ b/src/tests/process-manager.test.ts
@@ -31,7 +31,7 @@ function getBaseConfig(): AppRuntimeConfig {
   };
 }
 
-test("startNodeCG valida instalación de NodeCG antes de arrancar", async () => {
+test("startNodeCG validates NodeCG installation before starting", async () => {
   const manager = createNodecgProcessManager({
     isDev: true,
     nodecgRootPath: "/fake/nodecg",
@@ -41,17 +41,17 @@ test("startNodeCG valida instalación de NodeCG antes de arrancar", async () =>
     deps: {
       pathExists: () => false,
       spawnProcess: () => {
-        throw new Error("no debe intentar arrancar si la validación falla");
+        throw new Error("it must not try to start if validation fails");
       },
     },
   });
 
   await assert.rejects(async () => {
     await manager.startNodecgProcess();
-  }, /No existe la carpeta NodeCG/);
+  }, /NodeCG folder does not exist/);
 });
 
-test("startNodeCG falla si no hay permisos de lectura/escritura", async () => {
+test("startNodeCG fails when there are no read/write permissions", async () => {
   const manager = createNodecgProcessManager({
     isDev: true,
     nodecgRootPath: "/fake/nodecg",
@@ -66,10 +66,10 @@ test("startNodeCG falla si no hay permisos de lectura/escritura", async () => {
 
   await assert.rejects(async () => {
     await manager.startNodecgProcess();
-  }, /Sin permisos de lectura\/escritura/);
+  }, /No read\/write permissions on NodeCG/);
 });
 
-test("waitForNodeCGReady resuelve cuando el endpoint responde 404", async () => {
+test("waitForNodeCGReady resolves when endpoint returns 404", async () => {
   const child = new MockChildProcess(4321);
   const manager = createNodecgProcessManager({
     isDev: true,
@@ -99,7 +99,7 @@ test("waitForNodeCGReady resuelve cuando el endpoint responde 404", async () =>
   });
 });
 
-test("stopNodeCG envía SIGTERM y luego SIGKILL si el proceso no sale", async () => {
+test("stopNodeCG sends SIGTERM and then SIGKILL if the process does not exit", async () => {
   const child = new MockChildProcess(9999);
   const timers: Array<() => void> = [];
   const killSignals: Array<{ pid: number; signal: NodeJS.Signals }> = [];
@@ -147,7 +147,7 @@ test("stopNodeCG envía SIGTERM y luego SIGKILL si el proceso no sale", async ()
   await stopPromise;
 });
 
-test("stopNodeCG reutiliza la misma promesa cuando se invoca en paralelo", async () => {
+test("stopNodeCG reuses the same promise when invoked in parallel", async () => {
   const child = new MockChildProcess(5555);
 
   const manager = createNodecgProcessManager({
@@ -179,7 +179,7 @@ test("stopNodeCG reutiliza la misma promesa cuando se invoca en paralelo", async
   await firstStop;
 });
 
-test("stopNodeCG normaliza timeout negativo a cero", async () => {
+test("stopNodeCG normalizes negative timeout to zero", async () => {
   const child = new MockChildProcess(7777);
   const timeouts: number[] = [];
 
@@ -218,7 +218,7 @@ test("stopNodeCG normaliza timeout negativo a cero", async () => {
   await stopPromise;
 });
 
-test("startNodeCG falla si el puerto ya está ocupado", async () => {
+test("startNodeCG fails if the port is already in use", async () => {
   const manager = createNodecgProcessManager({
     isDev: true,
     nodecgRootPath: "/fake/nodecg",
@@ -234,10 +234,10 @@ test("startNodeCG falla si el puerto ya está ocupado", async () => {
 
   await assert.rejects(async () => {
     await manager.startNodecgProcess();
-  }, /ya está en uso/);
+  }, /is already in use/);
 });
 
-test("waitForNodeCGReady expone diagnóstico cuando NodeCG sale antes de readiness", async () => {
+test("waitForNodeCGReady exposes diagnostics when NodeCG exits before readiness", async () => {
   const child = new MockChildProcess(4242);
   const manager = createNodecgProcessManager({
     isDev: true,
@@ -272,9 +272,9 @@ test("waitForNodeCGReady expone diagnóstico cuando NodeCG sale antes de readine
     },
     (error: unknown) => {
       assert.ok(error instanceof Error);
-      assert.match(error.message, /NodeCG terminó antes de estar listo/);
-      assert.match(error.message, /Última salida registrada/);
-      assert.match(error.message, /Ruta NodeCG: \/fake\/nodecg/);
+      assert.match(error.message, /NodeCG exited before becoming ready/);
+      assert.match(error.message, /Last recorded exit/);
+      assert.match(error.message, /NodeCG path: \/fake\/nodecg/);
       return true;
     },
   );
diff --git a/src/tests/runtime-config.test.ts b/src/tests/runtime-config.test.ts
index d2653fa..aab385d 100644
--- a/src/tests/runtime-config.test.ts
+++ b/src/tests/runtime-config.test.ts
@@ -24,61 +24,61 @@ function withEnv(name: string, value: string | undefined, run: () => void): void
   }
 }
 
-test("getOptionalEnv devuelve undefined para variable ausente", () => {
+test("getOptionalEnv returns undefined for missing variable", () => {
   withEnv("TEST_OPTIONAL_ENV", undefined, () => {
     assert.equal(getOptionalEnv("TEST_OPTIONAL_ENV"), undefined);
   });
 });
 
-test("getOptionalEnv recorta espacios y devuelve valor", () => {
+test("getOptionalEnv trims spaces and returns value", () => {
   withEnv("TEST_OPTIONAL_ENV", "  scoreko  ", () => {
     assert.equal(getOptionalEnv("TEST_OPTIONAL_ENV"), "scoreko");
   });
 });
 
-test("getEnv devuelve fallback para valor vacío", () => {
+test("getEnv returns fallback for empty value", () => {
   withEnv("TEST_ENV", "   ", () => {
     assert.equal(getEnv("TEST_ENV", "fallback"), "fallback");
   });
 });
 
-test("getEnv devuelve el valor cuando existe", () => {
-  withEnv("TEST_ENV", "valor", () => {
-    assert.equal(getEnv("TEST_ENV", "fallback"), "valor");
+test("getEnv returns the value when present", () => {
+  withEnv("TEST_ENV", "value", () => {
+    assert.equal(getEnv("TEST_ENV", "fallback"), "value");
   });
 });
 
-test("parseEnvInt devuelve fallback para valores inválidos", () => {
+test("parseEnvInt returns fallback for invalid values", () => {
   withEnv("TEST_ENV_INT", "abc", () => {
     assert.equal(parseEnvInt("TEST_ENV_INT", 100), 100);
   });
 });
 
-test("parseEnvInt parsea enteros válidos", () => {
+test("parseEnvInt parses valid integers", () => {
   withEnv("TEST_ENV_INT", "4500", () => {
     assert.equal(parseEnvInt("TEST_ENV_INT", 100), 4500);
   });
 });
 
-test("parseEnvIntInRange hace hard-fail para valores fuera de rango", () => {
+test("parseEnvIntInRange hard-fails for out-of-range values", () => {
   withEnv("TEST_ENV_INT_RANGE", "999", () => {
-    assert.throws(() => parseEnvIntInRange("TEST_ENV_INT_RANGE", 100, 0, 100), /debe ser un entero/);
+    assert.throws(() => parseEnvIntInRange("TEST_ENV_INT_RANGE", 100, 0, 100), /must be an integer/);
   });
 });
 
-test("parseEnvIntInRange acepta valor válido", () => {
+test("parseEnvIntInRange accepts valid value", () => {
   withEnv("TEST_ENV_INT_RANGE", "42", () => {
     assert.equal(parseEnvIntInRange("TEST_ENV_INT_RANGE", 100, 0, 100), 42);
   });
 });
 
-test("parseEnvPort valida rango TCP", () => {
+test("parseEnvPort validates TCP range", () => {
   withEnv("TEST_ENV_PORT", "70000", () => {
-    assert.throws(() => parseEnvPort("TEST_ENV_PORT", "9090"), /puerto TCP válido/);
+    assert.throws(() => parseEnvPort("TEST_ENV_PORT", "9090"), /valid TCP port/);
   });
 });
 
-test("parseEnvPort normaliza el puerto válido", () => {
+test("parseEnvPort normalizes valid port", () => {
   withEnv("TEST_ENV_PORT", "009090", () => {
     assert.equal(parseEnvPort("TEST_ENV_PORT", "9090"), "9090");
   });
diff --git a/src/tests/timing.test.ts b/src/tests/timing.test.ts
index 108e0fe..bc4e3c0 100644
--- a/src/tests/timing.test.ts
+++ b/src/tests/timing.test.ts
@@ -3,12 +3,12 @@ import test from "node:test";
 
 import { getRemainingDelayMs } from "../main/utils/timing";
 
-test("getRemainingDelayMs devuelve el tiempo restante cuando aún no se cumple", () => {
+test("getRemainingDelayMs returns the remaining time when delay has not elapsed", () => {
   const remaining = getRemainingDelayMs(10000, 1000, 4000);
   assert.equal(remaining, 7000);
 });
 
-test("getRemainingDelayMs devuelve 0 si ya pasó el delay", () => {
+test("getRemainingDelayMs returns 0 when delay has already elapsed", () => {
   const remaining = getRemainingDelayMs(1000, 1000, 5000);
   assert.equal(remaining, 0);
 });