Vyuha Systems

WORK

Fitness Kernel: Multi-Tenant Gym SaaS Built as a Control Plane

A multi-tenant fitness platform for studios and gyms — memberships, PT scheduling, check-in, and a platform admin layer where features and tenants can be switched live.

This website was designed and shipped by Bharvi Parsaniya in a previous role, before Vyuha Systems. We present it as founder portfolio work — the process and standards are what Vyuha clients get today.

Abstract visual representing Fitness Kernel multi-tenant gym operations
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Multi-tenant gym SaaS with live feature and tenant switches. Founder product.

Challenge

The situation

Boutique studios and multi-location gyms outgrow WhatsApp, spreadsheets, and bolted-together tools. Memberships, trainer schedules, client packages, and front-desk check-in invent separate truths. Operators need one product that respects tenant isolation — and a platform layer that can turn features or entire gyms on and off without redeploying.

Approach

The system we designed

  1. Designed the product as a multi-tenant control plane: each gym is an organization with its own members, roles, and data — fail-closed isolation by default.

  2. Mapped the real operating loop first: memberships, PT scheduling, packages, attendance/check-in, leads, and recovery — then gated each domain behind org feature flags.

  3. Built a platform admin surface so Vyuha can provision tenants, flip features, change plans, and suspend workspaces without touching code.

  4. Placed AI only where workflows already break — insights and digests owned by operators, not orphan chatbots.

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