VS Code
Editor
Adrenaline Systems
A multi-branch gym operating system.
Built to make memberships, payments, trainers, and daily operations manageable from a single workspace.
The Problem
Most gym software focuses on recording transactions.
I was more interested in operating the gym itself.
Memberships can freeze.
Members renew early.
Plans get queued.
Refunds happen.
Trainers sell packages.
Branches have different rules.
The challenge was keeping memberships understandable as more business rules were added.
What I Owned
Product Design
System Design
Database Design
Backend
Frontend
Payments
UX Flows
Deployment
Tools I Used
Official marks from the tools and platforms used to design, build, deploy, and operate the system.
Git
Version control
Vercel
Deployment
Next.js
Framework
Tailwind CSS
Styling
npm
Packages
AWS
Cloud
AWS Lambda
Serverless compute
AWS DynamoDB
NoSQL database
Cloudflare
Edge platform
Cloudflare D1
SQL database
Cloudflare R2
Object storage
Cloudflare Workers
Runtime
Cloudflare Wrangler
CLI
Codex
Coding agent
Claude Code
Coding agent
The System That Interested Me Most
Membership Lifecycle
A membership is rarely just "active" or "expired".
It can move through purchase, activation, freeze, resume, renewal, refund, and queued coverage.
Instead of treating memberships as status changes, I treated them as coverage windows that evolve through business events.
This decision influenced the design of freezes, refunds, renewals, and future subscriptions.
Purchase
↓
Active
↓
Freeze
↓
Resume
↓
Renew
↓
Refund
↓
Queued Coverage
Visual Proof
Public Onboarding Experience
Members can discover the gym, purchase a plan, and start interacting with the platform without visiting the front desk.
Membership Plan Configuration
Plans are more than pricing. They define lifecycle rules, freeze policies, visibility, and operational behavior.
Payment Provider Activation
Gym owners can connect their own Razorpay or Cashfree accounts. The platform verifies credentials, validates webhooks, and enables member self-checkout.
Owner Workspace
A single workspace for memberships, payments, sales, branches, freezes, and operational activity.
Systems Designed
ComplexityHigh
Membership Lifecycle
The model used to keep freezes, renewals, refunds, and queued plans understandable.
ComplexityVery High
Unified Payment Workflow
A single operational workflow for Razorpay, Cashfree, and manual payment proofs.
ComplexityVery High
Freeze Engine
Policy-based freezes with approvals, date shifting, and rollback support.
ComplexityMedium
Dense Dashboard APIs
Backend-driven dashboard responses designed to reduce frontend complexity.
Project Snapshot
Multi-branch Gym Platform
Live and publicly accessible.
Memberships
Trainers
Payments
Referrals
Refunds
Branch Operations
Public Purchases
Next
Interested in authorization, governance, and workflow systems?
Hospital Manage explores those problems.