How to Build a Calendar-Synced Micro-Workout App with Next.js and Claude Code
Step-by-step tutorial on Google Calendar OAuth integration and algorithmic 10-minute desk routine prescription.
1. The Problem Space & Market Gap
The biggest fallacy in consumer fitness tech is assuming remote workers have 90 continuous minutes for gym sessions. For software engineers and knowledge workers trapped in back-to-back Zoom meetings, fitness must fit into 10-minute calendar gaps or it will never happen.
Calendar-Workout connects to Google Calendar and Microsoft 365 OAuth, detects natural 10-minute gaps around the 2:30 PM slump, and prescribes zero-sweat ergonomic mobility breaks.
2. System Architecture & Technical Specs
When building this project with Next.js 16, Supabase, and Claude Code or Cursor, the core data model must enforce strict tenancy and state validation:
create table build_calendar_synced_wo_records (
id uuid primary key default gen_random_uuid(),
user_id uuid references auth.users not null,
title text not null,
status text not null check (status in ('active', 'pending', 'archived')),
metadata jsonb default '{}'::jsonb,
created_at timestamptz default now()
);
Key workflows include automated background jobs, instant email/SMS notifications, and real-time state synchronization across web and mobile clients.
3. Monetization & Distribution Channels
Pricing should align with the emotional urgency or business ROI of the user: a direct tier of $19 to $49 one-time access or a recurring $9.99/mo subscription.
Initial traction is achieved by sharing technical teardowns and open-source boilerplates directly in targeted Reddit subreddits, specialized Discord servers, and niche product directories.
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