Telar | David Bartol - Desarrollador & Product Builder

🧠 The Idea

Telar was born out of frustration with modern web development.

To build a simple app today, you need to choose from dozens of frameworks, configure webpack, write JSX, manage dependencies… all before you’ve solved the real problem.

The hypothesis: what if you could describe what you want in Spanish, and the compiler made all the technical decisions for you?

🚀 What It Does

aplicación MiTienda
 
  página inicio en "/"
    usar navbar
    título "Bienvenido"
 
    mostrar productos recientes
      máximo 8
      ordenados por precio
      si falla
        mostrar "Sin conexión"
        reintentar en 5 segundos
 
    si el usuario está conectado
      botón "Mi cuenta" ir a cuenta
    si no
      botón "Entrar" ir a login
 
    optimizar para móvil
    caché 10 minutos

It automatically compiles into semantic HTML, responsive CSS and optimised JavaScript without you having to touch any of those files.

Declarative syntax in structured Spanish
Compilation to production-ready HTML + CSS + JS
Mobile optimisation, caching and ARIA accessibility by default
Error messages in Spanish with visual context
Full CLI: compile, serve, check, new
Package manager with official packages
Live reload on the development server
Official extension for VS Code

🏗️ Compiler Architecture

Telar implements a full three-phase compiler:

Lexer — tokenises the .telar file, recognising Spanish text with accents and the letter ‘ñ’
Parser — constructs the abstract syntax tree (AST) from the tokens
Generator — traverses the AST and produces semantic HTML + responsive CSS + JavaScript

Each phase has its own error system with messages in Spanish and specific suggestions on how to resolve them, including visual context from the lines in the file.

📦 Ecosystem

Telar has its own package manager based on GitHub:

telar nuevo mi-proyecto
telar añadir navbar
telar añadir formulario
telar añadir lista
telar servir app.telar

Packages are GitHub repositories prefixed with telar-. Anyone can create and publish packages for the community.

📊 What’s Interesting About the Project

The most challenging part wasn’t generating the HTML, but rather:

Designing a grammar that reads like natural Spanish but is deterministic
Handling the ambiguity of human language without losing precision
Building useful error messages with visual context of line and column
Implementing a significant indentation system compatible with the parser
Creating a package manager without its own infrastructure using GitHub as a registry

The main challenge was finding the balance between human readability and compiler precision — too free and the compiler is ambiguous, too strict and it loses the naturalness of Spanish.

🎯 Current Status

Telar is at v0.5 with a complete compiler, CLI, package manager, VS Code extension, and three official packages. v0.6 will add full tests and CI/CD. v1.0 will include web documentation and community.

📦 Installation

npm install -g @davidbc01/telar
telar nuevo mi-proyecto
cd mi-proyecto
telar servir app.telar