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Focused Feedback
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MIRATREINO CASE STUDY
Video Feedback Platform for Martial Arts.
MIRATREINO is a private video feedback platform for martial arts training. It reduces friction in student-coach feedback loops through structured uploads, visual annotation, and a single source of truth for progress over time.
Product Designer & Vibe Engineer
2026 (Live with ~10 students)
Solo
DESIGN → BUILD
~10
LIVE STUDENTS
PRIVATE TRAINING ARCHIVE
Feedback, movement references, and progress history live in one focused system instead of scattered chat threads.
THE FRICTION
The Problem
Corrections get lost in ephemeral chat histories, forcing me to repeat explanations to students.
Students’ progress feels fragmented across various chat apps or personal devices.
Precise, moment-specific feedback is nearly impossible with simple text or voice messages.
Without a centralized repository, there’s a total lack of training continuity and no long-term audit trail.
THE SHIFT
The Solution
I built a private platform where:
Upload: Students upload their training videos directly to the platform.
Annotate: I provide timestamped feedback and draw directly on their frames.
Grow: Our teaching library grows over time (I record it once, and assign it repeatedly).
LIVE IMPACT
~10
ACTIVE STUDENTS
BEHAVIORS
Rewatching the library (validating the archive)
Checking their dashboard regularly
Viewing old feedback before new uploads
BENEFITS
Significantly reduced repetitive work
Relocated students stayed connected
Years of teaching are now documented
PERFORMANCE STACK
<1s
PAGE LOADS
<2s
VIDEO START
720p
MOBILE OPTIMAL
React/Vite (Lovable)
Supabase (Auth/DB)
Bunny Stream (CDN)
Three-section System
Training corner, Repository of Knowledge, Social Sphere.
Focused Platform
Absolutely no connection to any external social media.
Video Annotation
Timestamped text comments and Draw-over-video capabilities.
Modular Architecture
I built it for Capoeira, designed to adapt to other disciplines.
</> THE APPROACH
I am the user (solving a problem from personal lived experience)
Solo full-stack execution as a Vibe Engineer (design → development → deployment)
Rapid iteration with actual students using AI-assisted tools
🚀 THE FUTURE
Polishing, adding or removing features based on users’ feedback
Cross-discipline validation (expanding to BJJ and music teachers)
MIRATREINO.
© 2026 VIBE ENGINEERING SHOWCASE