Decisions

Every technical call
is yours to make now.

What to build it with, where to deploy it, and what to spec before you hand it to an AI coding tool. One recommendation for each, with the reasoning attached.

Make a decision

2ND68% match

Render

$10/mo now

$70/mo at 10k

View analysis →

3ND61% match

Fly.io

$12/mo now

$95/mo at 10k

View analysis →

Recommended

92% match92

Railway

FlaskMySQL10k users

The lowest-friction reliable deployment for this Flask and MySQL application.

Now

$5/mo

At 10k users

$40/mo

Cost over time

RailwayRenderFly.io

1K users10K users100K users

Why Railway won

Lowest cost at your scale and beyond
Simplest deployment and observability
Best fit for Flask + MySQL

See tradeoffs and rejected options

Three decisions

We make the call and show you why it’s right.

We spec it before the agent builds it wrong.

You’re burning credits on Claude, ChatGPT, or Codex because the prompt wasn’t specific enough. The agent builds the wrong thing, you re-explain it, it burns more credits and still misses.

Feature Builder

Turns your idea into a structured SRS (a spec): the exact behavior, constraints, and acceptance criteria. You hand the agent a spec instead of a vibe, and it builds it right the first time.

OutputStructured SRSAcceptance criteria

Spec preview

Ready for coding agent

1.1

Core Behavior

Users can create, view, and manage projects.

Create a project with name, description, and owner
List projects with search and filters
View project details and settings
Archive or delete a project (soft delete)

1.2

Constraints

Python 3.11+FlaskMySQL 8DockerAWS (us-east-1)

1.3

Acceptance Criteria (Examples)

Project can be created with valid name and description

We match the host to your app, not the hype.

You’ve tried to deploy and gotten stuck choosing between what everyone online recommends and what your app actually needs. The advice you find is about someone else’s project, not yours.

Deployment Advisor

Reads your actual stack, budget, and expected users, then tells you which provider fits your application specifically. Not the most popular one. The one that fits what you’re actually running.

OutputRanked hostsCost curve

Provider comparison

ProviderMatchNowAt 10k usersNotes

Railway✦

92%$5/mo$40/moBest cost, easiest deploy

Render

68%$10/mo$70/moHigher cost at scale

Fly.io

61%$12/mo$95/moMore ops overhead

AWS ECS

40%$32/mo$150/moComplex / overkill

Why others lost

Render gets expensive at scale. Fly.io has more operational overhead.

ECS is overkill for this app and increases complexity and time.

We pick the stack that fits, not the one that’s trending.

You’re starting a project and genuinely don’t know what stack to use. Picking what’s common or what a tutorial used isn’t the same as picking what will hold up as your idea grows.

Stack Chooser

Looks at what you’re actually building and recommends the stack that fits it: one that scales when you need it to, without you overpaying for infrastructure you don’t need yet.

OutputRecommended stackTradeoffs

Recommended stack

Flask

Web

MySQL

Database

Redis

Cache

Storage

Railway

Deploy

Why this stack

Right balance of simplicity and scalability
Low operational overhead
Grows with you without migration pain

Alternatives considered

Django + PostgreSQL

Good, but heavier than needed

FastAPI + PostgreSQL

Great, but higher complexity now

Every technical callis yours to make now.

Railway

We make the call and show you why it’s right.

We spec it before the agent builds it wrong.

Core Behavior

Constraints

Acceptance Criteria (Examples)

We match the host to your app, not the hype.

We pick the stack that fits, not the one that’s trending.

Every technical call
is yours to make now.