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アーキテクチャ18 min readTechsy Engineering, Architecture team

The Architecture Decision Playbook

Architecture decisions outlive the people who make them by years. This playbook is how we evaluate stack choices for our own builds, without falling into the trap of picking the trendy thing or the safe thing instead of the right thing. Coming soon: early May 2026.

The Architecture Decision Playbook

What you'll get

  • A scoring rubric for build-vs-buy that goes beyond "do we have the engineers"
  • When monolith beats microservices (more often than the internet thinks)
  • How to evaluate a database for the next 5 years, not the next 5 weeks
  • A list of the technology choices that have aged well, and the ones that have not
01

In production

This playbook is being written now and ships in early May 2026. In the meantime, the Software Procurement Playbook covers a lot of the same evaluation discipline applied to buying tools, and most of it transfers directly to architecture decisions.

Want a heads-up when this drops? Drop us a line and we will email you the day it goes live.

Working through this decision now?

30-minute call with our team. Walk us through what you're weighing and we'll give you honest input — no pitch unless you ask for one.

Book a call

In this playbook

  1. 01In production

Related

Custom Software Cost CalculatorTalk to an architect

Other books on the shelf

TECHSYVOL. 01 · 2026
The Software Procurement Playbook
調達The Software Procurement Playbook
運用中
The Vendor Selection Playbook
ベンダーの選択The Vendor Selection Playbook

More playbooks

調達

The Software Procurement Playbook

A repeatable framework for buying software without burning six months and a million dollars on the wrong platform.

ベンダーの選択

The Vendor Selection Playbook

How to pick the right development partner (agency, freelancer, in-house) without overpaying or shipping a half-built product.

注目のツール

リソース

すべて表示
  • The Software Procurement Playbook

    A repeatable framework for buying software without burning six months and a million dollars on the wrong platform.

  • The Architecture Decision Playbook

    A practical framework for picking your stack: when to build vs. buy, monolith vs. microservices, and how to avoid resume-driven design.

  • The Vendor Selection Playbook

    How to pick the right development partner (agency, freelancer, in-house) without overpaying or shipping a half-built product.

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  • SEO Audit

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AI自動化

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注目のツール

リソース

すべて表示
  • The Software Procurement Playbook

    A repeatable framework for buying software without burning six months and a million dollars on the wrong platform.

  • The Architecture Decision Playbook

    A practical framework for picking your stack: when to build vs. buy, monolith vs. microservices, and how to avoid resume-driven design.

  • The Vendor Selection Playbook

    How to pick the right development partner (agency, freelancer, in-house) without overpaying or shipping a half-built product.

Claude Skills

すべて表示
  • New Post

    Full SEO blog pipeline: research, brief, write, validate, image, translate, publish to Sanity. Autonomous from start to finish.

  • Content Refresh

    Audit a stale post, find decay drivers, and ship a SERP-aligned refresh without losing existing rankings.

  • SEO Audit

    Site-wide SEO audit with prioritized fix list: technical, on-page, and EEAT signals.

AI自動化

すべて表示
  • Security Auditor

    Weekly SCA + IaC scan with prioritized fix PRs.

  • Cold Email Writer

    Generates first-touch emails grounded in one specific public detail.

  • Lead Research Agent

    Enrich an email into a profile, score fit, alert in Slack.

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  • CRMシステム
  • AI統合
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  • プロセス自動化
  • サイバーセキュリティ

ライブラリ

  • リソース
  • ブログ
  • ポートフォリオ

コミュニティ

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ツール

  • モバイルアプリ開発費用計算ツール
  • OpenAI / LLM API 利用料金計算ツール
  • MVP(Minimum Viable Product)開発費用計算ツール
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  • 概要
  • パートナー
  • お問い合わせ

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  • プライバシーポリシー
  • 利用規約
  • クッキーポリシー

サービス

  • エンタープライズソリューション
  • モバイルアプリ
  • Webアプリケーション

ソリューション

  • CRMシステム
  • AI統合
  • ERPソリューション
  • 音声エージェント
  • プロセス自動化
  • サイバーセキュリティ

ライブラリ

  • リソース
  • ブログ
  • ポートフォリオ

コミュニティ

  • AI自動化
  • Claude Skills

ツール

  • モバイルアプリ開発費用計算ツール
  • OpenAI / LLM API 利用料金計算ツール
  • MVP(Minimum Viable Product)開発費用計算ツール
  • 音声AIエージェント構築費用計算ツール

会社情報

  • 概要
  • パートナー
  • お問い合わせ
法的情報プライバシーポリシー利用規約クッキーポリシー
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