---
title: Related Links
description: A curated set of external links — a sample implementation, a talk, and write-ups and books by people who have used NexusArchitect
seo:
  image: /ogp.png
---

This page collects articles written by people who have actually used NexusArchitect, along with a sample of
generated code. Browse these before you install if you want a feel for what the output looks like.

:::note[These are all links to external sites]
Everything below was published by someone outside the NexusArchitect development team. Clicking a card opens
Zenn, GitHub, or connpass in a new tab. Most of these are written in Japanese. Content reflects the state of
NexusArchitect at the time each piece was published, so it may not match current behavior.
:::

## Sample implementation

<CardGroup cols={1}>
  <Card
    title="api-impl: a reference implementation of microservice API patterns"
    icon="github"
    cta="View on GitHub"
    href="https://github.com/wfukatsu/api-impl"
  >
    Five API patterns — plain CRUD, 2PC, Saga, TCC, and GraphQL — designed and generated end-to-end with an
    e-commerce order system as the sample domain. Five microservices built with Java/Spring Boot/ScalarDB
  </Card>
</CardGroup>

## Event

<CardGroup cols={1}>
  <Card
    title="AI-Driven Modernization with Claude Code, and Tips for Using AI (Japanese)"
    icon="presentation"
    cta="View on connpass"
    href="https://scalar.connpass.com/event/397397/"
  >
    Held June 23, 2026. A meetup on AI-driven modernization with Nexus Architect, walking through the full
    process from analyzing an existing codebase to evaluation, redesign, and design review
  </Card>
</CardGroup>

## Series: AI-driven refactoring of a legacy POS system (6 parts, Japanese)

Using Nexus Architect × ScalarDB, this series analyzes, redesigns, implements, and measures the impact of
modernizing a legacy POS system carrying real technical debt.

<CardGroup cols={2}>
  <Card
    title="Part 1: The big picture of AI-driven legacy refactoring"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-scalardb-01"
  >
    Introduces the combined approach of Nexus Architect, ScalarDB, and Compound Engineering, plus the technical
    debt built into the legacy POS system used as the case study
  </Card>
  <Card
    title="Part 2: From analysis to design review"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-scalardb-02"
  >
    Runs the automated pipeline against an existing Java monolith, tracing bounded-context redesign, target
    architecture generation, and a five-lens design review
  </Card>
  <Card
    title="Part 3: Reading the current-state, domain, and evaluation reports"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-scalardb-03"
  >
    Analyzes the auto-generated current-state and domain reports, and presents an improvement roadmap from a
    46% MMI score and 24.5% DDD adoption score
  </Card>
  <Card
    title="Part 4: Reading the ScalarDB design and review results"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-scalardb-04"
  >
    A redesign into 13 microservices, ScalarDB schema design, Outbox, hybrid Saga, and CQRS — and how the design
    went from a failing review to passing one
  </Card>
  <Card
    title="Part 5: Carrying the design into implementation with Compound Engineering"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-scalardb-05"
  >
    Breaks the detailed design into an implementation plan and builds out 13 services incrementally, capturing
    lessons learned in `docs/solutions/` for reuse
  </Card>
  <Card
    title="Part 6: Modernization results and wrap-up"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-scalardb-06"
  >
    Measures the improvement — 86.8% DDD compliance, 77.4% average MMI — and wraps up with advice for starting a
    modernization effort in practice
  </Card>
</CardGroup>

## Series: AI-driven product development (5 parts, Japanese)

Using an internal web app, "RADAR" (deal and account management), this series follows the project from planning
through pairing with AI, MVP validation, production design, and implementation.

<CardGroup cols={2}>
  <Card
    title="Part 1: From spreadsheet to web app"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-product-new-development-01"
  >
    The overall story and repository structure behind migrating deal and account management from Google Sheets
    to the "RADAR" web app
  </Card>
  <Card
    title="Part 2: Defining requirements with AI"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-product-new-development-02"
  >
    How vision, success metrics, personas, and UI mocks were progressively made concrete through dialogue with AI
  </Card>
  <Card
    title="Part 3: From MVP to production design"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-product-new-development-03"
  >
    Validating hypotheses with a disposable concierge MVP, then the decision to move to a production stack, plus
    MMI/DDD scoring of the MVP code
  </Card>
  <Card
    title="Part 4: Design review for production readiness"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-product-new-development-04"
  >
    Organizing the domain into five bounded contexts with a modular-monolith design, and cutting critical issues
    from 7 to 0 through a five-lens review
  </Card>
  <Card
    title="Part 5: Building the platform with Spring Boot × Next.js"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-product-new-development-05"
  >
    Backend, frontend, auth, and audit-log implementation, plus practical AI-driven-development patterns learned
    from running the product in production
  </Card>
</CardGroup>

## Individual articles (Japanese)

<CardGroup cols={2}>
  <Card
    title="Connecting planning, design, issues, and implementation in AI-driven development"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/nexus-architect-ai-devops-loop"
  >
    How design documents in `reports/` are turned into an Epic/Sub-Epic/Issue hierarchy, tying planning through
    to code review and merge into a single flow
  </Card>
  <Card
    title="Estimating the AI token cost of running nexus-architect"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/0acf5738bfb923"
  >
    Managing pipeline cost with three mechanisms: upfront estimation, automated measurement during a run, and
    calibration against actual results
  </Card>
  <Card
    title="Letting AI name a product: putting the naming skill into practice"
    icon="/logo/zenn-mark.svg"
    cta="Read on Zenn"
    href="https://zenn.dev/scalar_sol_blog/articles/f19b6c7adbaa5b"
  >
    A worked example of acronym-style product naming with `/product:name-product`, from building a word bank
    through candidate generation to trademark/domain checks
  </Card>
</CardGroup>

## Books (Japanese)

<CardGroup cols={2}>
  <Card
    title="AI-Driven POS Modernization with Claude Code: Nexus Architect and ScalarDB"
    icon="/logo/zenn-mark.svg"
    cta="Read for free"
    href="https://zenn.dev/hako_hako/books/legacy-refactoring-nexus-scalardb"
  >
    The ScalarDB series above, compiled into a book. 23 chapters, free to read, covering analysis and design
    through implementation and impact measurement
  </Card>
  <Card
    title="Software Development Alongside an AI Agent"
    icon="/logo/zenn-mark.svg"
    cta="Read for free"
    href="https://zenn.dev/hako_hako/books/nexus-product-new-development"
  >
    The RADAR series above, compiled into a book, from brainstorming with AI through hypothesis validation,
    design, implementation, and post-launch improvement
  </Card>
</CardGroup>