Tech stack decision

Day 7 of 30 · Generative AI 2026: Build AI Apps and Agents

One-liner: Confirm a practical stack that supports fast delivery.
Time: 20 to 30 min
Deliverable: Stack Decision Doc

Learning goal

You will be able to: Select a stack that supports your MVP and constraints.

Success criteria (observable)

  • The stack includes frontend, backend, hosting, and payments.
  • The choice is justified with three reasons.
  • The stack aligns with the time budget.

Output you will produce

  • Deliverable: Stack Decision Doc
  • Format: One page doc
  • Where saved: Course folder under /generative-ai-2026-build-ai-apps-and-agents/

Who

Primary persona: Digital nomad choosing a stack Secondary persona(s): Contributors or collaborators Stakeholders (optional): Early users

What

What it is

A practical choice of tools you can ship with now. It balances speed, simplicity, and the required capabilities.

What it is not

It is not a future proof architecture plan.

2-minute theory

  • Simple stacks ship faster and break less often.
  • Fewer services reduce setup and maintenance overhead.
  • The best stack is the one you can deploy today.

Key terms

  • Stack: The set of tools used to build and run the product.
  • Constraint: A limit like time, budget, or skills.

Where

Applies in

  • Technical planning
  • Build setup

Does not apply in

  • Long term scaling plans

Touchpoints

  • Repo README
  • Deployment config
  • Billing setup

When

Use it when

  • You are ready to build
  • You must decide the core tools

Frequency

Once per product idea, revisit after launch

Late signals

  • You keep switching tools
  • The project stalls due to setup

Why it matters

Practical benefits

  • Faster development
  • Clearer onboarding
  • Easier debugging

Risks of ignoring

  • Tool churn
  • Slow progress

Expectations

  • Improves: shipping speed
  • Does not guarantee: scalability

How

Step-by-step method

  1. List required capabilities.
  2. Choose tools that match your skills.
  3. Confirm hosting and payments.
  4. Write three reasons for the choice.

Do and don't

Do

  • Prefer tools with clear docs and tutorials
  • Minimize custom infrastructure

Don't

  • Choose tools only for hype
  • Add services you cannot maintain

Common mistakes and fixes

  • Mistake: Too many tools. Fix: Remove non essential services.
  • Mistake: Stack does not support payments. Fix: Add Stripe from the start.

Done when

  • Frontend, backend, hosting, and payments are defined.
  • Reasons are written and specific.
  • The stack matches the time budget.

Guided exercise (10 to 15 min)

Inputs

  • MVP scope
  • Skills and constraints

Steps

  1. List required capabilities.
  2. Pick tools for each capability.
  3. Write three reasons for the stack.

Output format

Field Value
Capability Tool
Reason 1
Reason 2
Reason 3

Pro tip: A boring stack you can ship beats a perfect stack you cannot.

Independent exercise (5 to 10 min)

Task

Remove one tool and explain why the stack still works.

Output

Updated stack decision doc.

Self-check (yes/no)

  • Does the stack cover frontend, backend, hosting, payments?
  • Are the reasons tied to speed and simplicity?
  • Can you build it with your current skills?
  • Does it fit the time budget?

Baseline metric (recommended)

  • Score: 3 of 4 checks met
  • Date: 2026-02-06
  • Tool used: Notes app

Bibliography (sources used)

  1. The Pragmatic Programmer. Andrew Hunt and David Thomas. 2024-01-01. Read: https://pragprog.com/titles/tpp20/the-pragmatic-programmer-20th-anniversary-edition/

  2. Stripe Docs. Stripe. 2024-01-01. Read: https://stripe.com/docs

Read more (optional)

  1. Vercel Docs Why: Practical hosting for fast MVPs. Read: https://vercel.com/docs