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Notes

Notes from building products: case studies, snippets and reflections. The register grows with the projects.

4 entries

  1. KMP-004

    How I obtained a tax ruling for a marketplace without an adviser

    I wrote the individual tax ruling application for Melly myself. What worked and what I learned along the way.

    • #tax
    • #marketplace
    • #compliance
    • #Melly
    Case study 2 min read
  2. KMP-003

    GDPR in SaaS without the paperwork theatre: roles, retention, anonymisation

    Five architecture decisions that let a children's camp booking system process health data in line with GDPR, rather than merely “having a policy”.

    • #GDPR
    • #architecture
    • #security
    • #Bookli
    Note 2 min read
  3. KMP-002

    A capacity limit that cannot be exceeded

    Two parents click “Book” in the same second and one place is left. How to prevent overbooking in Laravel with a transaction and a row lock.

    • #Laravel
    • #MySQL
    • #concurrency
    • #Bookli
    Snippet 1 min read
  4. KMP-001

    Read the old system first. All of it.

    Before writing Bookli I analysed two large booking applications and researched what the market needed. Why it was the best-spent part of the budget.

    • #product
    • #discovery
    • #legacy
    • #Bookli
    Reflection 2 min read