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© 2026 Petri Lahdelma

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© 2026 Petri Lahdelma

X/Twitter LinkedIn GitHub Substack Medium Instagram Facebook Dribbble

Writing

Writing is where I publish the thinking behind the work

Frameworks for repeatable methods. Articles for observations and shorter pieces.

Design systems that ship

Contracts, tokens and governance that teams actually use.

Essays

Design systems in the AI era
Enterprise UX that ships
Web Components for design systems: when and why
Token architecture that scales

Tools

Design System Adoption Playbook (2026)
Governance Pack: RACI + RFC template + release checklist
Figma<->React Alignment Handbook
Token Migration Playbook

Case studies

SAP Build Apps Design System
Helsinki Design System

Governance and adoption

Release discipline, decision rights and adoption loops.

Essays

Enterprise UX that ships
Growth loops for design system adoption

Tools

Governance Pack: RACI + RFC template + release checklist
Adoption Dashboard Spec (metrics + cadence)
Growth Experimentation Framework
Component Inventory Audit

Case studies

SAP Build Apps Design System

AI-assisted DesignOps

Automation with guardrails and measurable quality.

Essays

Design systems in the AI era
AI in design systems: what actually works
The stack is the method

Tools

Figma<->React Alignment Handbook
Adoption Dashboard Spec (metrics + cadence)
AI Prompt Library for Design Systems

Case studies

VertaaUX: Building an AI-powered UX audit platform

Accessibility as default

Inclusive defaults that reduce rework and risk.

Essays

Accessibility as a speed multiplier

Tools

Design Debt Audit Checklist

Case studies

Helsinki Design System

Design systems for bots: UI contracts that AI agents can't misinterpret

When AI agents touch your product, vague design systems create broken UI at machine speed.

Feb 5·4 min read

MCP for practitioners: which tools actually help

A curated guide to Model Context Protocol servers that ship value, not just demos.

Feb 2·5 min read

Claude Code as orchestration layer

AI runs work, not just writes code. How to build systems that compound context instead of losing it.

Feb 2·8 min read