Hobby Club Membership Architecture

How to manage and engage club membership in the 21st century


  • Easily managed by anyone
    • no single dependency
    • well documented and supportable
  • Inexpensive (free is best)
  • Consider the membership as our customers

Membership is a Journey

More that just members and requires categorisation

  • Contact - Anyone that we know about
  • Member - Someone with an active membership
  • Certified - Someone with an active certification
  • Lapsed - A former member, now not active
  • etc.

Journey Full

We Require an ecosystem

  • User accounts / identity
    • security and personalisation
    • self serve changes
  • User data management
    • secure storage of PII
    • GDPR and other data protection
  • User communications
    • direct and group notifications
    • opt in/out and preferences

Use the Internet

Many SaaS products offer a free tier for low usage customers and provide the capabilities we require


  • Customer data storage
  • Customer authentication and authorisation
  • Secure version management of documents
  • Web presence and outreach


Mailchimp - User Management

Free Tier
contacts 2000
audience 1
sends/mth 10,000
sends/day 2,000

We use contacts for all membership and leverage

  • Opt in/out functionality
  • GDPR (and other data protection) compliance

Auth0 - Identity & Access

Free Tier
active users 7,000
logins unlimited

we use users for all membership and leverage

  • Login and Identity
  • Define roles (e.g. kind of member)
  • Sync with Mailchimp

Github - Storage

Free Tier
repositories unlimited
automation minutes/mth 2,000

we use github to securely store and version data

  • Website content
  • Encrypted user data
  • UKRA documents and publications

Netlify - web presence

Free Tier
bandwidth 100GB/month
build minutes 300/month
websites unlimited
serverless functions 125k/month
forms 100/month

we use netlify to provide website and integration

The Ask

The initial ask is for committee approval to initiate

  • Overall approach
  • Create (free) accounts for products
    • Registered to a UKRA email address
  • Initial configuration for baseline

Next Steps

After the baseline activity, we can start

  • Recruiting the UKRA Tech Team
  • Detailed design documentation
  • Migrate existing members to the system
  • Build out new website
  • Enable bulk email communication