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%DB2+1%*D8~4*C/060=/65#5F<|BD%E11<>7+{=C3123+39%~5%0=1_E05FA|150F0*~+#E$0011__6&{30E0A51<|C6E1D%}0><2F65A***~#90*6|1A12&0_=%%52+=<=D|=<F~40<2#|={36BB~3%+7ED41=37*9+<1#A31>46C641=*0*|=+~428C3

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Notes on engineering, product and building things: the tools I ship, and what I learn shipping them.

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All posts6 Claude Code5 AI4 Workflow3 Claude Design1 Database1 Design1 Git1 Next.js1 Postgres1 Prisma1 Skills1 Spec-Driven Development1 Subagents1 TypeScript1 Version Control1

I asked for a light mode and ended up redesigning my whole site

A small request for a light mode turned into a full redesign with Claude Design and Claude Code. What I built, what broke and what I learnt.

Claude Code Claude Design Design Next.js

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Oct 16, 20263 min read

My take on Anthropic's Scion: git has to adapt, but not like this

Anthropic replaced git for their monorepo. I work with very large repos, and here is what I think carries over and what doesn't.

Git Version Control AI

Sep 29, 20263 min read

Let the expensive model think and the cheap one look things up

How I use subagents for discovery and lookups so the main agent keeps a clean context, and where subagents go wrong.

Claude Code Subagents AI

Sep 18, 20263 min read

CLAUDE.md or a skill? Where your rules should live

My CLAUDE.md kept growing every time Claude got something wrong. Moving task-specific rules into skills fixed most of it, with some caveats.

Claude Code Skills AI

Sep 8, 20263 min read

Why I dropped OpenSpec for a few thin spec skills

Spec-driven development works, until the specs pile up. What I kept, what I dropped, and why stale specs quietly hurt your agent.

Claude Code Spec-Driven Development AI

Aug 25, 20265 min read

Prefixed IDs in Prisma and Postgres: what they cost and when they're worth it

A practical look at Stripe-style prefixed IDs in Prisma: how nanoid, ULID, UUIDv7 and cuid2 compare, what string primary keys cost Postgres, and how to migrate.

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Notes, ideas& lessons.

Notes on engineering, product and building things: the tools I ship, and what I learn shipping them.

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All posts6 Claude Code5 AI4 Workflow3 Claude Design1 Database1 Design1 Git1 Next.js1 Postgres1 Prisma1 Skills1 Spec-Driven Development1 Subagents1 TypeScript1 Version Control1

I asked for a light mode and ended up redesigning my whole site

A small request for a light mode turned into a full redesign with Claude Design and Claude Code. What I built, what broke and what I learnt.

Claude Code Claude Design Design Next.js

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Oct 16, 20263 min read

My take on Anthropic's Scion: git has to adapt, but not like this

Anthropic replaced git for their monorepo. I work with very large repos, and here is what I think carries over and what doesn't.

Git Version Control AI

Sep 29, 20263 min read

Let the expensive model think and the cheap one look things up

How I use subagents for discovery and lookups so the main agent keeps a clean context, and where subagents go wrong.

Claude Code Subagents AI

Sep 18, 20263 min read

CLAUDE.md or a skill? Where your rules should live

My CLAUDE.md kept growing every time Claude got something wrong. Moving task-specific rules into skills fixed most of it, with some caveats.

Claude Code Skills AI

Sep 8, 20263 min read

Why I dropped OpenSpec for a few thin spec skills

Spec-driven development works, until the specs pile up. What I kept, what I dropped, and why stale specs quietly hurt your agent.

Claude Code Spec-Driven Development AI

Aug 25, 20265 min read

Prefixed IDs in Prisma and Postgres: what they cost and when they're worth it

A practical look at Stripe-style prefixed IDs in Prisma: how nanoid, ULID, UUIDv7 and cuid2 compare, what string primary keys cost Postgres, and how to migrate.

Prisma Postgres TypeScript

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