Work
A central index of projects across language, performance and practical systems.
This is not a portfolio in the traditional sense. It is a map of active projects, applied systems and ongoing lines of work built around clarity, deliberate practice and real progress.
Language · Performance · Systems · Deliberate practice
Language & Education
Language is where communication becomes structure. This area brings together Spanish learning, cultural context and practical tools for students who need more than isolated grammar explanations.
Learn Spanish with Pablo
Spanish learning, conversation, cultural context and personalized coaching for students who want structure, clarity and real-world practice.
Voces del Sur
A cultural and editorial space for Spanish learners, built around Latin American voices, travel, food, vocabulary and graded reading.
VerboLab
A practical conjugation tool for Spanish learners, designed to make verb practice clearer, more structured and more repeatable.
TildeLab
A focused practice system for Spanish accentuation, tildes and diacritical marks.
PronunciaLab
A lightweight pronunciation practice tool using browser-generated speech, microphone input and basic intelligibility feedback.
Performance & Outdoor
Performance is where movement becomes system. This area connects strength, climbing, mountain preparation and practical coaching for people who want to train with structure and move with intention.
Pablo Castillo Performance Coach
Strength, climbing, mountain preparation and deliberate physical practice for people who want to move better, train with structure and progress with intention.
Boulder Coaching
Structured boulder classes, movement practice and progression systems for climbers.
Mountain Performance
Preparation, training and thinking for mountain environments, trekking, climbing and outdoor progression.
FitLab
A coaching and tracking system for training, recovery, health habits and practical decision-making.
BiomecLab
A movement and biomechanics analysis tool for mobility, assessment and coaching support.
Boulder Coach OS
An operational system for boulder classes, student progression, methodology and coaching workflow.
Selected Systems
Systems are the layer that make practice reproducible. Some support language learning. Some support training. Some organize coaching, workflows and digital operations.
VerboLab
A structured tool for practicing Spanish conjugation with more clarity and repetition.
FitLab
A practical system for training, recovery and coaching decisions.
Boulder Coach OS
A workflow system for organizing boulder classes, student progression and coaching methodology.
Websites & Workflows
Websites, booking systems, forms, CRM workflows and lightweight platforms for projects that need more clarity and less friction.
COMMON THREAD
Different formats, one way of working.
Whether the format is a class, a coaching process, a training plan or a digital tool, the method is the same: clarify the problem, build the structure, practice deliberately and improve what matters.