Musterpost

A design project — not a commercial product

An exploration of how a group might keep everyone's details in one place — and reach the right people in a couple of clicks.

Custom profiles for your members (for scouts: name, tie, region and so on), email and SMS to just the people you mean, and your existing Google Sheets and TryBooking data pulled in. You're welcome to look around.

The problem it started from: drowning in admin

The pain points that shaped the design.

Member details scattered across spreadsheets and inboxes
Every group tracks different things — no tool fits
Bookings live in TryBooking, members live somewhere else
Copy-pasting email lists to reach one region or section
No easy way to text the people who need to know
Leaders stuck doing admin instead of leading
This is what the project set out to solve.

What the project works through

The moving parts of knowing and reaching your members

Custom Profiles

  • Track what your group cares about
  • For scouts: tie, rank, region
  • Extra forms attach to any member

Email the Right People

  • Filter by rank, region and more
  • See the recipient count first
  • No copy-pasted mailing lists

SMS In progress

  • Text the same filtered groups
  • For news that can't wait
  • Uses the numbers already on file

Google Sheets Planned

  • Bring in your existing lists
  • Map columns to profile fields
  • No retyping, no starting over

TryBooking Planned

  • Pull in who booked what
  • Match bookings to members
  • Message attendees directly

Events & Camps

  • Online registration and payment
  • Family and day pricing
  • Health and consent forms

How it fits together

Five steps, from your existing lists to the right inboxes.

1

Choose your fields

2

Bring in your data

3

Keep profiles current

4

Pick who to reach

5

Send email or SMS

Built for your members, not just a list

Why a spreadsheet plus a mail-out tool is the wrong shape for the problem

FeatureMusterpostSpreadsheet + mail-out
Member detailsOne profile per personCopies in every file
FieldsDefined and validatedWhatever got typed
Send to one region or rank
Email and SMS from one place
Sheets and TryBooking data joined up
Access controls for youth data

That mismatch was the reason to explore something purpose-built.

Safety & Trust

How it was designed to treat sensitive data

Sensitive data kept access-controlled
Only authorised leaders would see personal details
Youth safety shaped the data model
Tenant isolation designed in from the start
No advertising, no data resale — never the point
Contact details used only to reach members

About this project

A demonstration, not a product for sale

Musterpost was built to explore how a group could know and reach its members — the interesting problems, not the business: profiles whose fields each group defines, data that validates itself, and messages that go to exactly the right people. Scouts are the first worked example; camps and events are one module within it.

It isn't a commercial service and isn't taking sign-ups — there's nothing to buy and nothing to launch. You're welcome to create an account and look around, but treat it as a sandbox: data is temporary and may be cleared at any time.

Curious how it fits together?

Have a look around the demo — no strings, nothing to buy.

Digital technology by Yart