coder000
est. 2005 · back in action

Learn to build real software, step by step.

coder000 is a friendly corner of the internet where you learn to code step by step — no jargon, no gatekeeping. From AI-assisted coding to databases, APIs and C#.

Browse all posts Start the AI series

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Hand-picked first reads — one from each corner of the site.

Featured series

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From Prompt to Production

Build a real app with AI — every prompt shown, every mistake kept

Build a real app with AI, end to end: Blazor Server, PostgreSQL and SignalR, developed with Claude across fourteen parts — every prompt shown, every AI mistake kept and fixed, every dollar counted. The companion repo's commit messages ARE the prompts.

Begin with Part 1
  1. Tools, models & honest expectations
  2. Set up Claude Code for .NET
  3. Conversation → spec
  4. Spec → PostgreSQL schema
  5. Scaffold: Blazor Server + EF Core
  6. CRUD with an AI pair — booking
  7. SignalR I — the live queue board
  8. SignalR II — chat & presence
  9. Testing AI-written code
  10. Debugging two real bugs
  11. The hardening pass
  12. Ship it — VPS, nginx, CI
  13. Agents, skills, MCP & saying no
  14. The retro — real costs, real lessons
Blazor: Beginner to Intermediate

Build real web apps with C# — no JavaScript required

A twelve-part, hands-on series that takes you from your very first Blazor app to intermediate skills — components, binding, forms, routing, services, lifecycle and render modes — while building a small clinic app inspired by our system design series. Fully up to date for .NET 10.

Begin with Part 1
  1. Hello, Blazor — setup & first app
  2. Anatomy of a Blazor project
  3. Components — build once, use everywhere
  4. Data binding & events
  5. Lists & conditionals
  6. Component communication
  7. Forms & validation
  8. Routing & navigation
  9. Services & dependency injection
  10. The component lifecycle
  11. Calling web APIs
  12. Render modes & next steps

What we write about

Pick a lane — every topic is written for curious beginners.

AI & Modern CodingWeb & APIsC# & .NETDatabases & DataDeveloper CraftSystem Design Interview Prep .NET MAUI — coming soon